Home / 614,131.20-921,196.80-187,666.20

Finding the Fourth Proportional to 614,131.20, 921,196.80 and 187,666.20

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Solution

The fourth proportional to 614,131.20, 921,196.80 and 187,666.20 is: 281,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,131.20 : 921,196.80 = 187,666.20 : x
  2. Step 2: Convert to fraction form
    614,131.20/921,196.80 = 187,666.20/x
  3. Step 3: Cross multiply
    614,131.20x = 921,196.80 × 187,666.20
  4. Step 4: Simplify right side
    614,131.20x = 172,877,502,908.16
  5. Step 5: Solve for x
    x = 172,877,502,908.16/614,131.20
  6. Step 6: Final answer
    x = 281,499.30

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Double scale
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Similar ratio
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1.5x scale

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.