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Finding the Fourth Proportional to 580,608,889.60, 870,913,334.40 and 521,486,406.40

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Solution

The fourth proportional to 580,608,889.60, 870,913,334.40 and 521,486,406.40 is: 782,229,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,608,889.60 : 870,913,334.40 = 521,486,406.40 : x
  2. Step 2: Convert to fraction form
    580,608,889.60/870,913,334.40 = 521,486,406.40/x
  3. Step 3: Cross multiply
    580,608,889.60x = 870,913,334.40 × 521,486,406.40
  4. Step 4: Simplify right side
    580,608,889.60x = 454,169,465,042,097,472
  5. Step 5: Solve for x
    x = 454,169,465,042,097,472/580,608,889.60
  6. Step 6: Final answer
    x = 782,229,609.60

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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.