Home / 812,571.68-1,218,401.40-556,693.16

Finding the Fourth Proportional to 812,571.68, 1,218,401.40 and 556,693.16

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Solution

The fourth proportional to 812,571.68, 1,218,401.40 and 556,693.16 is: 834,727.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,571.68 : 1,218,401.40 = 556,693.16 : x
  2. Step 2: Convert to fraction form
    812,571.68/1,218,401.40 = 556,693.16/x
  3. Step 3: Cross multiply
    812,571.68x = 1,218,401.40 × 556,693.16
  4. Step 4: Simplify right side
    812,571.68x = 678,275,725,514.42
  5. Step 5: Solve for x
    x = 678,275,725,514.42/812,571.68
  6. Step 6: Final answer
    x = 834,727.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.