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Finding the Fourth Proportional to 612,102,695.70, 918,154,043.55 and 588,294,138.90

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Solution

The fourth proportional to 612,102,695.70, 918,154,043.55 and 588,294,138.90 is: 882,441,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,102,695.70 : 918,154,043.55 = 588,294,138.90 : x
  2. Step 2: Convert to fraction form
    612,102,695.70/918,154,043.55 = 588,294,138.90/x
  3. Step 3: Cross multiply
    612,102,695.70x = 918,154,043.55 × 588,294,138.90
  4. Step 4: Simplify right side
    612,102,695.70x = 540,144,642,427,800,320
  5. Step 5: Solve for x
    x = 540,144,642,427,800,320/612,102,695.70
  6. Step 6: Final answer
    x = 882,441,208.35

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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.