Home / 545,965.40-818,948.10-488,228.60

Finding the Fourth Proportional to 545,965.40, 818,948.10 and 488,228.60

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Solution

The fourth proportional to 545,965.40, 818,948.10 and 488,228.60 is: 732,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,965.40 : 818,948.10 = 488,228.60 : x
  2. Step 2: Convert to fraction form
    545,965.40/818,948.10 = 488,228.60/x
  3. Step 3: Cross multiply
    545,965.40x = 818,948.10 × 488,228.60
  4. Step 4: Simplify right side
    545,965.40x = 399,833,884,335.66
  5. Step 5: Solve for x
    x = 399,833,884,335.66/545,965.40
  6. Step 6: Final answer
    x = 732,342.90

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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.