Home / 438,216.61-656,928.17-171,905.62

Finding the Fourth Proportional to 438,216.61, 656,928.17 and 171,905.62

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Solution

The fourth proportional to 438,216.61, 656,928.17 and 171,905.62 is: 257,702.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,216.61 : 656,928.17 = 171,905.62 : x
  2. Step 2: Convert to fraction form
    438,216.61/656,928.17 = 171,905.62/x
  3. Step 3: Cross multiply
    438,216.61x = 656,928.17 × 171,905.62
  4. Step 4: Simplify right side
    438,216.61x = 112,929,643,499.79
  5. Step 5: Solve for x
    x = 112,929,643,499.79/438,216.61
  6. Step 6: Final answer
    x = 257,702.79

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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.