Home / 719,111.84-992,377.20-396,831.20

Finding the Fourth Proportional to 719,111.84, 992,377.20 and 396,831.20

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Solution

The fourth proportional to 719,111.84, 992,377.20 and 396,831.20 is: 547,628.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,111.84 : 992,377.20 = 396,831.20 : x
  2. Step 2: Convert to fraction form
    719,111.84/992,377.20 = 396,831.20/x
  3. Step 3: Cross multiply
    719,111.84x = 992,377.20 × 396,831.20
  4. Step 4: Simplify right side
    719,111.84x = 393,806,235,128.64
  5. Step 5: Solve for x
    x = 393,806,235,128.64/719,111.84
  6. Step 6: Final answer
    x = 547,628.63

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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.