Home / 945,781.60-1,418,672.40-385,218.40

Finding the Fourth Proportional to 945,781.60, 1,418,672.40 and 385,218.40

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Solution

The fourth proportional to 945,781.60, 1,418,672.40 and 385,218.40 is: 577,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,781.60 : 1,418,672.40 = 385,218.40 : x
  2. Step 2: Convert to fraction form
    945,781.60/1,418,672.40 = 385,218.40/x
  3. Step 3: Cross multiply
    945,781.60x = 1,418,672.40 × 385,218.40
  4. Step 4: Simplify right side
    945,781.60x = 546,498,712,052.16
  5. Step 5: Solve for x
    x = 546,498,712,052.16/945,781.60
  6. Step 6: Final answer
    x = 577,827.60

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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.