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Finding the Fourth Proportional to 575,099.40, 862,649.10 and 154,417.80

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Solution

The fourth proportional to 575,099.40, 862,649.10 and 154,417.80 is: 231,626.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,099.40 : 862,649.10 = 154,417.80 : x
  2. Step 2: Convert to fraction form
    575,099.40/862,649.10 = 154,417.80/x
  3. Step 3: Cross multiply
    575,099.40x = 862,649.10 × 154,417.80
  4. Step 4: Simplify right side
    575,099.40x = 133,208,376,193.98
  5. Step 5: Solve for x
    x = 133,208,376,193.98/575,099.40
  6. Step 6: Final answer
    x = 231,626.70

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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.