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Finding the Fourth Proportional to 885,758.76, 1,222,414.74 and 503,762.76

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Solution

The fourth proportional to 885,758.76, 1,222,414.74 and 503,762.76 is: 695,231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,758.76 : 1,222,414.74 = 503,762.76 : x
  2. Step 2: Convert to fraction form
    885,758.76/1,222,414.74 = 503,762.76/x
  3. Step 3: Cross multiply
    885,758.76x = 1,222,414.74 × 503,762.76
  4. Step 4: Simplify right side
    885,758.76x = 615,807,023,287.08
  5. Step 5: Solve for x
    x = 615,807,023,287.08/885,758.76
  6. Step 6: Final answer
    x = 695,231.08

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Double scale
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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.