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Finding the Fourth Proportional to 571,529.25, 788,737.70 and 316,880.44

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Solution

The fourth proportional to 571,529.25, 788,737.70 and 316,880.44 is: 437,310.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,529.25 : 788,737.70 = 316,880.44 : x
  2. Step 2: Convert to fraction form
    571,529.25/788,737.70 = 316,880.44/x
  3. Step 3: Cross multiply
    571,529.25x = 788,737.70 × 316,880.44
  4. Step 4: Simplify right side
    571,529.25x = 249,935,548,240.95
  5. Step 5: Solve for x
    x = 249,935,548,240.95/571,529.25
  6. Step 6: Final answer
    x = 437,310.16

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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.