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Finding the Fourth Proportional to 917,447,486.40, 1,376,171,229.60 and 917,447,486.40

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Solution

The fourth proportional to 917,447,486.40, 1,376,171,229.60 and 917,447,486.40 is: 1,376,171,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,447,486.40 : 1,376,171,229.60 = 917,447,486.40 : x
  2. Step 2: Convert to fraction form
    917,447,486.40/1,376,171,229.60 = 917,447,486.40/x
  3. Step 3: Cross multiply
    917,447,486.40x = 1,376,171,229.60 × 917,447,486.40
  4. Step 4: Simplify right side
    917,447,486.40x = 1,262,564,835,452,517,120
  5. Step 5: Solve for x
    x = 1,262,564,835,452,517,120/917,447,486.40
  6. Step 6: Final answer
    x = 1,376,171,229.60

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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.