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Finding the Fourth Proportional to 976,618.81, 1,347,401.48 and 568,634.30

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Solution

The fourth proportional to 976,618.81, 1,347,401.48 and 568,634.30 is: 784,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,618.81 : 1,347,401.48 = 568,634.30 : x
  2. Step 2: Convert to fraction form
    976,618.81/1,347,401.48 = 568,634.30/x
  3. Step 3: Cross multiply
    976,618.81x = 1,347,401.48 × 568,634.30
  4. Step 4: Simplify right side
    976,618.81x = 766,178,697,398.76
  5. Step 5: Solve for x
    x = 766,178,697,398.76/976,618.81
  6. Step 6: Final answer
    x = 784,521.75

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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.