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Finding the Fourth Proportional to 474,715.08, 712,564.70 and 318,038.40

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Solution

The fourth proportional to 474,715.08, 712,564.70 and 318,038.40 is: 477,387.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,715.08 : 712,564.70 = 318,038.40 : x
  2. Step 2: Convert to fraction form
    474,715.08/712,564.70 = 318,038.40/x
  3. Step 3: Cross multiply
    474,715.08x = 712,564.70 × 318,038.40
  4. Step 4: Simplify right side
    474,715.08x = 226,622,935,494.29
  5. Step 5: Solve for x
    x = 226,622,935,494.29/474,715.08
  6. Step 6: Final answer
    x = 477,387.27

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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.