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Finding the Fourth Proportional to 672,876.39, 928,569.24 and 371,070.39

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Solution

The fourth proportional to 672,876.39, 928,569.24 and 371,070.39 is: 512,077.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,876.39 : 928,569.24 = 371,070.39 : x
  2. Step 2: Convert to fraction form
    672,876.39/928,569.24 = 371,070.39/x
  3. Step 3: Cross multiply
    672,876.39x = 928,569.24 × 371,070.39
  4. Step 4: Simplify right side
    672,876.39x = 344,564,550,028.80
  5. Step 5: Solve for x
    x = 344,564,550,028.80/672,876.39
  6. Step 6: Final answer
    x = 512,077.04

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Double scale
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1.5x scale

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.