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Finding the Fourth Proportional to 536,632.40, 804,948.60 and 387,916.40

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Solution

The fourth proportional to 536,632.40, 804,948.60 and 387,916.40 is: 581,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,632.40 : 804,948.60 = 387,916.40 : x
  2. Step 2: Convert to fraction form
    536,632.40/804,948.60 = 387,916.40/x
  3. Step 3: Cross multiply
    536,632.40x = 804,948.60 × 387,916.40
  4. Step 4: Simplify right side
    536,632.40x = 312,252,763,097.04
  5. Step 5: Solve for x
    x = 312,252,763,097.04/536,632.40
  6. Step 6: Final answer
    x = 581,874.60

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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.