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Finding the Fourth Proportional to 688,615,500.60, 1,032,923,250.90 and 688,615,500.60

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Solution

The fourth proportional to 688,615,500.60, 1,032,923,250.90 and 688,615,500.60 is: 1,032,923,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,615,500.60 : 1,032,923,250.90 = 688,615,500.60 : x
  2. Step 2: Convert to fraction form
    688,615,500.60/1,032,923,250.90 = 688,615,500.60/x
  3. Step 3: Cross multiply
    688,615,500.60x = 1,032,923,250.90 × 688,615,500.60
  4. Step 4: Simplify right side
    688,615,500.60x = 711,286,961,499,882,880
  5. Step 5: Solve for x
    x = 711,286,961,499,882,880/688,615,500.60
  6. Step 6: Final answer
    x = 1,032,923,250.90

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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.