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Finding the Fourth Proportional to 892,791.74, 1,232,061.48 and 484,901.56

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Solution

The fourth proportional to 892,791.74, 1,232,061.48 and 484,901.56 is: 669,168.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,791.74 : 1,232,061.48 = 484,901.56 : x
  2. Step 2: Convert to fraction form
    892,791.74/1,232,061.48 = 484,901.56/x
  3. Step 3: Cross multiply
    892,791.74x = 1,232,061.48 × 484,901.56
  4. Step 4: Simplify right side
    892,791.74x = 597,428,533,667.91
  5. Step 5: Solve for x
    x = 597,428,533,667.91/892,791.74
  6. Step 6: Final answer
    x = 669,168.98

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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.