Home / 719,527.46-992,981.13-397,283.30

Finding the Fourth Proportional to 719,527.46, 992,981.13 and 397,283.30

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Solution

The fourth proportional to 719,527.46, 992,981.13 and 397,283.30 is: 548,269.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,527.46 : 992,981.13 = 397,283.30 : x
  2. Step 2: Convert to fraction form
    719,527.46/992,981.13 = 397,283.30/x
  3. Step 3: Cross multiply
    719,527.46x = 992,981.13 × 397,283.30
  4. Step 4: Simplify right side
    719,527.46x = 394,494,820,164.13
  5. Step 5: Solve for x
    x = 394,494,820,164.13/719,527.46
  6. Step 6: Final answer
    x = 548,269.30

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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.