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Finding the Fourth Proportional to 674,015,853.90, 944,896,215.30 and 674,015,853.90

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Solution

The fourth proportional to 674,015,853.90, 944,896,215.30 and 674,015,853.90 is: 944,896,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,015,853.90 : 944,896,215.30 = 674,015,853.90 : x
  2. Step 2: Convert to fraction form
    674,015,853.90/944,896,215.30 = 674,015,853.90/x
  3. Step 3: Cross multiply
    674,015,853.90x = 944,896,215.30 × 674,015,853.90
  4. Step 4: Simplify right side
    674,015,853.90x = 636,875,029,402,307,712
  5. Step 5: Solve for x
    x = 636,875,029,402,307,712/674,015,853.90
  6. Step 6: Final answer
    x = 944,896,215.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.