Home / 719,112.84-992,378.58-396,832.20

Finding the Fourth Proportional to 719,112.84, 992,378.58 and 396,832.20

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Solution

The fourth proportional to 719,112.84, 992,378.58 and 396,832.20 is: 547,630.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,112.84 : 992,378.58 = 396,832.20 : x
  2. Step 2: Convert to fraction form
    719,112.84/992,378.58 = 396,832.20/x
  3. Step 3: Cross multiply
    719,112.84x = 992,378.58 × 396,832.20
  4. Step 4: Simplify right side
    719,112.84x = 393,807,775,134.28
  5. Step 5: Solve for x
    x = 393,807,775,134.28/719,112.84
  6. Step 6: Final answer
    x = 547,630.01

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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.