Home / 885,514.60-1,328,660.70-411,956.20

Finding the Fourth Proportional to 885,514.60, 1,328,660.70 and 411,956.20

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Solution

The fourth proportional to 885,514.60, 1,328,660.70 and 411,956.20 is: 618,115.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,514.60 : 1,328,660.70 = 411,956.20 : x
  2. Step 2: Convert to fraction form
    885,514.60/1,328,660.70 = 411,956.20/x
  3. Step 3: Cross multiply
    885,514.60x = 1,328,660.70 × 411,956.20
  4. Step 4: Simplify right side
    885,514.60x = 547,350,013,061.34
  5. Step 5: Solve for x
    x = 547,350,013,061.34/885,514.60
  6. Step 6: Final answer
    x = 618,115.18

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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.