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Finding the Fourth Proportional to 499,483.40, 749,225.10 and 162,555.80

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Solution

The fourth proportional to 499,483.40, 749,225.10 and 162,555.80 is: 243,833.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,483.40 : 749,225.10 = 162,555.80 : x
  2. Step 2: Convert to fraction form
    499,483.40/749,225.10 = 162,555.80/x
  3. Step 3: Cross multiply
    499,483.40x = 749,225.10 × 162,555.80
  4. Step 4: Simplify right side
    499,483.40x = 121,790,885,510.58
  5. Step 5: Solve for x
    x = 121,790,885,510.58/499,483.40
  6. Step 6: Final answer
    x = 243,833.70

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.