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Finding the Fourth Proportional to 571,627.19, 788,877.02 and 316,972.91

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Solution

The fourth proportional to 571,627.19, 788,877.02 and 316,972.91 is: 437,440.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,627.19 : 788,877.02 = 316,972.91 : x
  2. Step 2: Convert to fraction form
    571,627.19/788,877.02 = 316,972.91/x
  3. Step 3: Cross multiply
    571,627.19x = 788,877.02 × 316,972.91
  4. Step 4: Simplify right side
    571,627.19x = 250,052,644,661.53
  5. Step 5: Solve for x
    x = 250,052,644,661.53/571,627.19
  6. Step 6: Final answer
    x = 437,440.08

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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.