Home / 885,665.61-1,222,221.35-503,719.05

Finding the Fourth Proportional to 885,665.61, 1,222,221.35 and 503,719.05

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Solution

The fourth proportional to 885,665.61, 1,222,221.35 and 503,719.05 is: 695,133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,665.61 : 1,222,221.35 = 503,719.05 : x
  2. Step 2: Convert to fraction form
    885,665.61/1,222,221.35 = 503,719.05/x
  3. Step 3: Cross multiply
    885,665.61x = 1,222,221.35 × 503,719.05
  4. Step 4: Simplify right side
    885,665.61x = 615,656,174,793.12
  5. Step 5: Solve for x
    x = 615,656,174,793.12/885,665.61
  6. Step 6: Final answer
    x = 695,133.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.