Home / 661,723.60-992,585.40-615,067.60

Finding the Fourth Proportional to 661,723.60, 992,585.40 and 615,067.60

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Solution

The fourth proportional to 661,723.60, 992,585.40 and 615,067.60 is: 922,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,723.60 : 992,585.40 = 615,067.60 : x
  2. Step 2: Convert to fraction form
    661,723.60/992,585.40 = 615,067.60/x
  3. Step 3: Cross multiply
    661,723.60x = 992,585.40 × 615,067.60
  4. Step 4: Simplify right side
    661,723.60x = 610,507,119,773.04
  5. Step 5: Solve for x
    x = 610,507,119,773.04/661,723.60
  6. Step 6: Final answer
    x = 922,601.40

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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.