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Finding the Fourth Proportional to 959,096,931.20, 1,438,645,396.80 and 959,096,931.20

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Solution

The fourth proportional to 959,096,931.20, 1,438,645,396.80 and 959,096,931.20 is: 1,438,645,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,096,931.20 : 1,438,645,396.80 = 959,096,931.20 : x
  2. Step 2: Convert to fraction form
    959,096,931.20/1,438,645,396.80 = 959,096,931.20/x
  3. Step 3: Cross multiply
    959,096,931.20x = 1,438,645,396.80 × 959,096,931.20
  4. Step 4: Simplify right side
    959,096,931.20x = 1,379,800,385,155,886,336
  5. Step 5: Solve for x
    x = 1,379,800,385,155,886,336/959,096,931.20
  6. Step 6: Final answer
    x = 1,438,645,396.80

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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.