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Finding the Fourth Proportional to 615,235.60, 922,853.40 and 547,584.40

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Solution

The fourth proportional to 615,235.60, 922,853.40 and 547,584.40 is: 821,376.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,235.60 : 922,853.40 = 547,584.40 : x
  2. Step 2: Convert to fraction form
    615,235.60/922,853.40 = 547,584.40/x
  3. Step 3: Cross multiply
    615,235.60x = 922,853.40 × 547,584.40
  4. Step 4: Simplify right side
    615,235.60x = 505,340,125,326.96
  5. Step 5: Solve for x
    x = 505,340,125,326.96/615,235.60
  6. Step 6: Final answer
    x = 821,376.60

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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.