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Finding the Fourth Proportional to 580,643,086.80, 870,964,630.20 and 576,612,008.40

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Solution

The fourth proportional to 580,643,086.80, 870,964,630.20 and 576,612,008.40 is: 864,918,012.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,643,086.80 : 870,964,630.20 = 576,612,008.40 : x
  2. Step 2: Convert to fraction form
    580,643,086.80/870,964,630.20 = 576,612,008.40/x
  3. Step 3: Cross multiply
    580,643,086.80x = 870,964,630.20 × 576,612,008.40
  4. Step 4: Simplify right side
    580,643,086.80x = 502,208,664,664,985,280
  5. Step 5: Solve for x
    x = 502,208,664,664,985,280/580,643,086.80
  6. Step 6: Final answer
    x = 864,918,012.60

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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.