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Finding the Fourth Proportional to 531,101.71, 732,911.13 and 289,386.27

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Solution

The fourth proportional to 531,101.71, 732,911.13 and 289,386.27 is: 399,348.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,101.71 : 732,911.13 = 289,386.27 : x
  2. Step 2: Convert to fraction form
    531,101.71/732,911.13 = 289,386.27/x
  3. Step 3: Cross multiply
    531,101.71x = 732,911.13 × 289,386.27
  4. Step 4: Simplify right side
    531,101.71x = 212,094,418,152.19
  5. Step 5: Solve for x
    x = 212,094,418,152.19/531,101.71
  6. Step 6: Final answer
    x = 399,348.02

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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.