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Finding the Fourth Proportional to 615,551.60, 923,327.40 and 578,226.80

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Solution

The fourth proportional to 615,551.60, 923,327.40 and 578,226.80 is: 867,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,551.60 : 923,327.40 = 578,226.80 : x
  2. Step 2: Convert to fraction form
    615,551.60/923,327.40 = 578,226.80/x
  3. Step 3: Cross multiply
    615,551.60x = 923,327.40 × 578,226.80
  4. Step 4: Simplify right side
    615,551.60x = 533,892,647,854.32
  5. Step 5: Solve for x
    x = 533,892,647,854.32/615,551.60
  6. Step 6: Final answer
    x = 867,340.20

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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.