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Finding the Fourth Proportional to 650,021.20, 975,031.80 and 335,093.20

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Solution

The fourth proportional to 650,021.20, 975,031.80 and 335,093.20 is: 502,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,021.20 : 975,031.80 = 335,093.20 : x
  2. Step 2: Convert to fraction form
    650,021.20/975,031.80 = 335,093.20/x
  3. Step 3: Cross multiply
    650,021.20x = 975,031.80 × 335,093.20
  4. Step 4: Simplify right side
    650,021.20x = 326,726,525,963.76
  5. Step 5: Solve for x
    x = 326,726,525,963.76/650,021.20
  6. Step 6: Final answer
    x = 502,639.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.