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Finding the Fourth Proportional to 417,938.84, 576,902.76 and 248,171.76

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Solution

The fourth proportional to 417,938.84, 576,902.76 and 248,171.76 is: 342,564.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,938.84 : 576,902.76 = 248,171.76 : x
  2. Step 2: Convert to fraction form
    417,938.84/576,902.76 = 248,171.76/x
  3. Step 3: Cross multiply
    417,938.84x = 576,902.76 × 248,171.76
  4. Step 4: Simplify right side
    417,938.84x = 143,170,973,298.06
  5. Step 5: Solve for x
    x = 143,170,973,298.06/417,938.84
  6. Step 6: Final answer
    x = 342,564.41

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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.