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Finding the Fourth Proportional to 616,007.80, 924,702.90 and 476,385.40

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Solution

The fourth proportional to 616,007.80, 924,702.90 and 476,385.40 is: 715,112.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,007.80 : 924,702.90 = 476,385.40 : x
  2. Step 2: Convert to fraction form
    616,007.80/924,702.90 = 476,385.40/x
  3. Step 3: Cross multiply
    616,007.80x = 924,702.90 × 476,385.40
  4. Step 4: Simplify right side
    616,007.80x = 440,514,960,897.66
  5. Step 5: Solve for x
    x = 440,514,960,897.66/616,007.80
  6. Step 6: Final answer
    x = 715,112.63

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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.