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Finding the Fourth Proportional to 656,800.71, 985,570.16 and 357,302.27

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Solution

The fourth proportional to 656,800.71, 985,570.16 and 357,302.27 is: 536,154.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,800.71 : 985,570.16 = 357,302.27 : x
  2. Step 2: Convert to fraction form
    656,800.71/985,570.16 = 357,302.27/x
  3. Step 3: Cross multiply
    656,800.71x = 985,570.16 × 357,302.27
  4. Step 4: Simplify right side
    656,800.71x = 352,146,448,697.90
  5. Step 5: Solve for x
    x = 352,146,448,697.90/656,800.71
  6. Step 6: Final answer
    x = 536,154.18

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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.