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Finding the Fourth Proportional to 568,376.76, 784,421.10 and 424,890.12

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Solution

The fourth proportional to 568,376.76, 784,421.10 and 424,890.12 is: 586,394.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,376.76 : 784,421.10 = 424,890.12 : x
  2. Step 2: Convert to fraction form
    568,376.76/784,421.10 = 424,890.12/x
  3. Step 3: Cross multiply
    568,376.76x = 784,421.10 × 424,890.12
  4. Step 4: Simplify right side
    568,376.76x = 333,292,775,309.53
  5. Step 5: Solve for x
    x = 333,292,775,309.53/568,376.76
  6. Step 6: Final answer
    x = 586,394.09

Related Problems

Find fourth proportional to 284,188.38, 392,210.55 and 212,445.06
Half scale
Find fourth proportional to 1,136,753.52, 1,568,842.20 and 849,780.24
Double scale
Find fourth proportional to 568,377.76, 784,422.48 and 424,891.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.