Home / 638,111.17-956,264.41-353,926.92

Finding the Fourth Proportional to 638,111.17, 956,264.41 and 353,926.92

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Solution

The fourth proportional to 638,111.17, 956,264.41 and 353,926.92 is: 530,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,111.17 : 956,264.41 = 353,926.92 : x
  2. Step 2: Convert to fraction form
    638,111.17/956,264.41 = 353,926.92/x
  3. Step 3: Cross multiply
    638,111.17x = 956,264.41 × 353,926.92
  4. Step 4: Simplify right side
    638,111.17x = 338,447,717,336.92
  5. Step 5: Solve for x
    x = 338,447,717,336.92/638,111.17
  6. Step 6: Final answer
    x = 530,389.90

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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.