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Finding the Fourth Proportional to 585,051.20, 877,576.80 and 545,685.20

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Solution

The fourth proportional to 585,051.20, 877,576.80 and 545,685.20 is: 818,527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,051.20 : 877,576.80 = 545,685.20 : x
  2. Step 2: Convert to fraction form
    585,051.20/877,576.80 = 545,685.20/x
  3. Step 3: Cross multiply
    585,051.20x = 877,576.80 × 545,685.20
  4. Step 4: Simplify right side
    585,051.20x = 478,880,671,623.36
  5. Step 5: Solve for x
    x = 478,880,671,623.36/585,051.20
  6. Step 6: Final answer
    x = 818,527.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.