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Finding the Fourth Proportional to 591,787.80, 887,681.70 and 367,401.60

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Solution

The fourth proportional to 591,787.80, 887,681.70 and 367,401.60 is: 551,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,787.80 : 887,681.70 = 367,401.60 : x
  2. Step 2: Convert to fraction form
    591,787.80/887,681.70 = 367,401.60/x
  3. Step 3: Cross multiply
    591,787.80x = 887,681.70 × 367,401.60
  4. Step 4: Simplify right side
    591,787.80x = 326,135,676,870.72
  5. Step 5: Solve for x
    x = 326,135,676,870.72/591,787.80
  6. Step 6: Final answer
    x = 551,102.40

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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.