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Finding the Fourth Proportional to 977,141,310.12, 1,465,711,032 and 250,128,855.72

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Solution

The fourth proportional to 977,141,310.12, 1,465,711,032 and 250,128,855.72 is: 375,193,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,141,310.12 : 1,465,711,032 = 250,128,855.72 : x
  2. Step 2: Convert to fraction form
    977,141,310.12/1,465,711,032 = 250,128,855.72/x
  3. Step 3: Cross multiply
    977,141,310.12x = 1,465,711,032 × 250,128,855.72
  4. Step 4: Simplify right side
    977,141,310.12x = 366,616,623,250,340,288
  5. Step 5: Solve for x
    x = 366,616,623,250,340,288/977,141,310.12
  6. Step 6: Final answer
    x = 375,193,044.70

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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.