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Finding the Fourth Proportional to 906,552,687.60, 1,359,829,031.40 and 709,281,788.40

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Solution

The fourth proportional to 906,552,687.60, 1,359,829,031.40 and 709,281,788.40 is: 1,063,922,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,552,687.60 : 1,359,829,031.40 = 709,281,788.40 : x
  2. Step 2: Convert to fraction form
    906,552,687.60/1,359,829,031.40 = 709,281,788.40/x
  3. Step 3: Cross multiply
    906,552,687.60x = 1,359,829,031.40 × 709,281,788.40
  4. Step 4: Simplify right side
    906,552,687.60x = 964,501,967,309,631,744
  5. Step 5: Solve for x
    x = 964,501,967,309,631,744/906,552,687.60
  6. Step 6: Final answer
    x = 1,063,922,682.60

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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.