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Finding the Fourth Proportional to 615,092.80, 922,639.20 and 377,665.60

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Solution

The fourth proportional to 615,092.80, 922,639.20 and 377,665.60 is: 566,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,092.80 : 922,639.20 = 377,665.60 : x
  2. Step 2: Convert to fraction form
    615,092.80/922,639.20 = 377,665.60/x
  3. Step 3: Cross multiply
    615,092.80x = 922,639.20 × 377,665.60
  4. Step 4: Simplify right side
    615,092.80x = 348,449,087,051.52
  5. Step 5: Solve for x
    x = 348,449,087,051.52/615,092.80
  6. Step 6: Final answer
    x = 566,498.40

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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.