Home / 445,155.08-614,310.90-243,946.76

Finding the Fourth Proportional to 445,155.08, 614,310.90 and 243,946.76

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Solution

The fourth proportional to 445,155.08, 614,310.90 and 243,946.76 is: 336,644.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,155.08 : 614,310.90 = 243,946.76 : x
  2. Step 2: Convert to fraction form
    445,155.08/614,310.90 = 243,946.76/x
  3. Step 3: Cross multiply
    445,155.08x = 614,310.90 × 243,946.76
  4. Step 4: Simplify right side
    445,155.08x = 149,859,153,687.68
  5. Step 5: Solve for x
    x = 149,859,153,687.68/445,155.08
  6. Step 6: Final answer
    x = 336,644.82

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.