Home / 926,817.60-1,390,226.40-394,204.80

Finding the Fourth Proportional to 926,817.60, 1,390,226.40 and 394,204.80

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Solution

The fourth proportional to 926,817.60, 1,390,226.40 and 394,204.80 is: 591,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,817.60 : 1,390,226.40 = 394,204.80 : x
  2. Step 2: Convert to fraction form
    926,817.60/1,390,226.40 = 394,204.80/x
  3. Step 3: Cross multiply
    926,817.60x = 1,390,226.40 × 394,204.80
  4. Step 4: Simplify right side
    926,817.60x = 548,033,919,966.72
  5. Step 5: Solve for x
    x = 548,033,919,966.72/926,817.60
  6. Step 6: Final answer
    x = 591,307.20

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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.