Home / 749,032.53-1,033,664.67-409,500.78

Finding the Fourth Proportional to 749,032.53, 1,033,664.67 and 409,500.78

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Solution

The fourth proportional to 749,032.53, 1,033,664.67 and 409,500.78 is: 565,110.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,032.53 : 1,033,664.67 = 409,500.78 : x
  2. Step 2: Convert to fraction form
    749,032.53/1,033,664.67 = 409,500.78/x
  3. Step 3: Cross multiply
    749,032.53x = 1,033,664.67 × 409,500.78
  4. Step 4: Simplify right side
    749,032.53x = 423,286,488,623.44
  5. Step 5: Solve for x
    x = 423,286,488,623.44/749,032.53
  6. Step 6: Final answer
    x = 565,110.96

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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.