Home / 853,672.32-1,178,036.16-471,691.20

Finding the Fourth Proportional to 853,672.32, 1,178,036.16 and 471,691.20

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Solution

The fourth proportional to 853,672.32, 1,178,036.16 and 471,691.20 is: 650,916.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,672.32 : 1,178,036.16 = 471,691.20 : x
  2. Step 2: Convert to fraction form
    853,672.32/1,178,036.16 = 471,691.20/x
  3. Step 3: Cross multiply
    853,672.32x = 1,178,036.16 × 471,691.20
  4. Step 4: Simplify right side
    853,672.32x = 555,669,289,953.79
  5. Step 5: Solve for x
    x = 555,669,289,953.79/853,672.32
  6. Step 6: Final answer
    x = 650,916.37

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.