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Finding the Fourth Proportional to 593,115.40, 888,360.90 and 488,139.40

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Solution

The fourth proportional to 593,115.40, 888,360.90 and 488,139.40 is: 731,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,115.40 : 888,360.90 = 488,139.40 : x
  2. Step 2: Convert to fraction form
    593,115.40/888,360.90 = 488,139.40/x
  3. Step 3: Cross multiply
    593,115.40x = 888,360.90 × 488,139.40
  4. Step 4: Simplify right side
    593,115.40x = 433,643,956,709.46
  5. Step 5: Solve for x
    x = 433,643,956,709.46/593,115.40
  6. Step 6: Final answer
    x = 731,129.15

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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.