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Finding the Fourth Proportional to 332,140.60, 498,210.90 and 306,479.80

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Solution

The fourth proportional to 332,140.60, 498,210.90 and 306,479.80 is: 459,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,140.60 : 498,210.90 = 306,479.80 : x
  2. Step 2: Convert to fraction form
    332,140.60/498,210.90 = 306,479.80/x
  3. Step 3: Cross multiply
    332,140.60x = 498,210.90 × 306,479.80
  4. Step 4: Simplify right side
    332,140.60x = 152,691,576,989.82
  5. Step 5: Solve for x
    x = 152,691,576,989.82/332,140.60
  6. Step 6: Final answer
    x = 459,719.70

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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.