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Finding the Fourth Proportional to 906,552,806.10, 1,359,829,209.15 and 709,281,906.90

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Solution

The fourth proportional to 906,552,806.10, 1,359,829,209.15 and 709,281,906.90 is: 1,063,922,860.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,552,806.10 : 1,359,829,209.15 = 709,281,906.90 : x
  2. Step 2: Convert to fraction form
    906,552,806.10/1,359,829,209.15 = 709,281,906.90/x
  3. Step 3: Cross multiply
    906,552,806.10x = 1,359,829,209.15 × 709,281,906.90
  4. Step 4: Simplify right side
    906,552,806.10x = 964,502,254,524,230,912
  5. Step 5: Solve for x
    x = 964,502,254,524,230,912/906,552,806.10
  6. Step 6: Final answer
    x = 1,063,922,860.35

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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.