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Finding the Fourth Proportional to 418,959.92, 578,155.24 and 227,973.84

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Solution

The fourth proportional to 418,959.92, 578,155.24 and 227,973.84 is: 314,598.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,959.92 : 578,155.24 = 227,973.84 : x
  2. Step 2: Convert to fraction form
    418,959.92/578,155.24 = 227,973.84/x
  3. Step 3: Cross multiply
    418,959.92x = 578,155.24 × 227,973.84
  4. Step 4: Simplify right side
    418,959.92x = 131,804,270,178.92
  5. Step 5: Solve for x
    x = 131,804,270,178.92/418,959.92
  6. Step 6: Final answer
    x = 314,598.76

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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.