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Finding the Fourth Proportional to 282,600.90, 423,901.35 and 170,407.80

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Solution

The fourth proportional to 282,600.90, 423,901.35 and 170,407.80 is: 255,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,600.90 : 423,901.35 = 170,407.80 : x
  2. Step 2: Convert to fraction form
    282,600.90/423,901.35 = 170,407.80/x
  3. Step 3: Cross multiply
    282,600.90x = 423,901.35 × 170,407.80
  4. Step 4: Simplify right side
    282,600.90x = 72,236,096,470.53
  5. Step 5: Solve for x
    x = 72,236,096,470.53/282,600.90
  6. Step 6: Final answer
    x = 255,611.70

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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.