Home / 614,012.61-921,018.93-187,531.21

Finding the Fourth Proportional to 614,012.61, 921,018.93 and 187,531.21

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Solution

The fourth proportional to 614,012.61, 921,018.93 and 187,531.21 is: 281,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,012.61 : 921,018.93 = 187,531.21 : x
  2. Step 2: Convert to fraction form
    614,012.61/921,018.93 = 187,531.21/x
  3. Step 3: Cross multiply
    614,012.61x = 921,018.93 × 187,531.21
  4. Step 4: Simplify right side
    614,012.61x = 172,719,794,823.84
  5. Step 5: Solve for x
    x = 172,719,794,823.84/614,012.61
  6. Step 6: Final answer
    x = 281,296.82

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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.