Home / 865,418,732.91-1,193,817,279.78-526,430,848.83

Finding the Fourth Proportional to 865,418,732.91, 1,193,817,279.78 and 526,430,848.83

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Solution

The fourth proportional to 865,418,732.91, 1,193,817,279.78 and 526,430,848.83 is: 726,194,407.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,418,732.91 : 1,193,817,279.78 = 526,430,848.83 : x
  2. Step 2: Convert to fraction form
    865,418,732.91/1,193,817,279.78 = 526,430,848.83/x
  3. Step 3: Cross multiply
    865,418,732.91x = 1,193,817,279.78 × 526,430,848.83
  4. Step 4: Simplify right side
    865,418,732.91x = 628,462,243,942,507,008
  5. Step 5: Solve for x
    x = 628,462,243,942,507,008/865,418,732.91
  6. Step 6: Final answer
    x = 726,194,407.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.