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Finding the Fourth Proportional to 545,887.32, 753,327.52 and 316,580.59

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Solution

The fourth proportional to 545,887.32, 753,327.52 and 316,580.59 is: 436,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,887.32 : 753,327.52 = 316,580.59 : x
  2. Step 2: Convert to fraction form
    545,887.32/753,327.52 = 316,580.59/x
  3. Step 3: Cross multiply
    545,887.32x = 753,327.52 × 316,580.59
  4. Step 4: Simplify right side
    545,887.32x = 238,488,868,438.34
  5. Step 5: Solve for x
    x = 238,488,868,438.34/545,887.32
  6. Step 6: Final answer
    x = 436,882.96

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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.