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Finding the Fourth Proportional to 541,403.10, 812,104.65 and 225,870.30

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Solution

The fourth proportional to 541,403.10, 812,104.65 and 225,870.30 is: 338,805.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,403.10 : 812,104.65 = 225,870.30 : x
  2. Step 2: Convert to fraction form
    541,403.10/812,104.65 = 225,870.30/x
  3. Step 3: Cross multiply
    541,403.10x = 812,104.65 × 225,870.30
  4. Step 4: Simplify right side
    541,403.10x = 183,430,320,926.90
  5. Step 5: Solve for x
    x = 183,430,320,926.90/541,403.10
  6. Step 6: Final answer
    x = 338,805.45

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