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Finding the Fourth Proportional to 580,640,871.60, 870,961,307.40 and 576,609,793.20

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Solution

The fourth proportional to 580,640,871.60, 870,961,307.40 and 576,609,793.20 is: 864,914,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,640,871.60 : 870,961,307.40 = 576,609,793.20 : x
  2. Step 2: Convert to fraction form
    580,640,871.60/870,961,307.40 = 576,609,793.20/x
  3. Step 3: Cross multiply
    580,640,871.60x = 870,961,307.40 × 576,609,793.20
  4. Step 4: Simplify right side
    580,640,871.60x = 502,204,819,345,115,648
  5. Step 5: Solve for x
    x = 502,204,819,345,115,648/580,640,871.60
  6. Step 6: Final answer
    x = 864,914,689.80

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Double scale
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1.5x scale

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.