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Finding the Fourth Proportional to 748,712.68, 1,033,221 and 409,180.84

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Solution

The fourth proportional to 748,712.68, 1,033,221 and 409,180.84 is: 564,668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,712.68 : 1,033,221 = 409,180.84 : x
  2. Step 2: Convert to fraction form
    748,712.68/1,033,221 = 409,180.84/x
  3. Step 3: Cross multiply
    748,712.68x = 1,033,221 × 409,180.84
  4. Step 4: Simplify right side
    748,712.68x = 422,774,236,685.64
  5. Step 5: Solve for x
    x = 422,774,236,685.64/748,712.68
  6. Step 6: Final answer
    x = 564,668.19

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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.