Home / 812,795.28-1,121,551.20-468,644.16

Finding the Fourth Proportional to 812,795.28, 1,121,551.20 and 468,644.16

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Solution

The fourth proportional to 812,795.28, 1,121,551.20 and 468,644.16 is: 646,667.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,795.28 : 1,121,551.20 = 468,644.16 : x
  2. Step 2: Convert to fraction form
    812,795.28/1,121,551.20 = 468,644.16/x
  3. Step 3: Cross multiply
    812,795.28x = 1,121,551.20 × 468,644.16
  4. Step 4: Simplify right side
    812,795.28x = 525,608,420,020.99
  5. Step 5: Solve for x
    x = 525,608,420,020.99/812,795.28
  6. Step 6: Final answer
    x = 646,667.66

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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.