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Finding the Fourth Proportional to 611,893.47, 917,840.20 and 232,726.61

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Solution

The fourth proportional to 611,893.47, 917,840.20 and 232,726.61 is: 349,089.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,893.47 : 917,840.20 = 232,726.61 : x
  2. Step 2: Convert to fraction form
    611,893.47/917,840.20 = 232,726.61/x
  3. Step 3: Cross multiply
    611,893.47x = 917,840.20 × 232,726.61
  4. Step 4: Simplify right side
    611,893.47x = 213,605,843,452.87
  5. Step 5: Solve for x
    x = 213,605,843,452.87/611,893.47
  6. Step 6: Final answer
    x = 349,089.92

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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.