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Finding the Fourth Proportional to 704,729.64, 972,527.50 and 382,439.72

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Solution

The fourth proportional to 704,729.64, 972,527.50 and 382,439.72 is: 527,767.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,729.64 : 972,527.50 = 382,439.72 : x
  2. Step 2: Convert to fraction form
    704,729.64/972,527.50 = 382,439.72/x
  3. Step 3: Cross multiply
    704,729.64x = 972,527.50 × 382,439.72
  4. Step 4: Simplify right side
    704,729.64x = 371,933,144,792.30
  5. Step 5: Solve for x
    x = 371,933,144,792.30/704,729.64
  6. Step 6: Final answer
    x = 527,767.14

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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.