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Finding the Fourth Proportional to 611,790.76, 917,686.14 and 237,901.24

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Solution

The fourth proportional to 611,790.76, 917,686.14 and 237,901.24 is: 356,851.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,790.76 : 917,686.14 = 237,901.24 : x
  2. Step 2: Convert to fraction form
    611,790.76/917,686.14 = 237,901.24/x
  3. Step 3: Cross multiply
    611,790.76x = 917,686.14 × 237,901.24
  4. Step 4: Simplify right side
    611,790.76x = 218,318,670,636.81
  5. Step 5: Solve for x
    x = 218,318,670,636.81/611,790.76
  6. Step 6: Final answer
    x = 356,851.86

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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.