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Finding the Fourth Proportional to 746,865,000.10, 1,120,297,500.15 and 725,341,639.60

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Solution

The fourth proportional to 746,865,000.10, 1,120,297,500.15 and 725,341,639.60 is: 1,088,012,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,865,000.10 : 1,120,297,500.15 = 725,341,639.60 : x
  2. Step 2: Convert to fraction form
    746,865,000.10/1,120,297,500.15 = 725,341,639.60/x
  3. Step 3: Cross multiply
    746,865,000.10x = 1,120,297,500.15 × 725,341,639.60
  4. Step 4: Simplify right side
    746,865,000.10x = 812,598,425,598,582,400
  5. Step 5: Solve for x
    x = 812,598,425,598,582,400/746,865,000.10
  6. Step 6: Final answer
    x = 1,088,012,459.40

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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.