Home / 639,098.84-881,983.08-352,637.48

Finding the Fourth Proportional to 639,098.84, 881,983.08 and 352,637.48

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Solution

The fourth proportional to 639,098.84, 881,983.08 and 352,637.48 is: 486,654.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,098.84 : 881,983.08 = 352,637.48 : x
  2. Step 2: Convert to fraction form
    639,098.84/881,983.08 = 352,637.48/x
  3. Step 3: Cross multiply
    639,098.84x = 881,983.08 × 352,637.48
  4. Step 4: Simplify right side
    639,098.84x = 311,020,290,733.84
  5. Step 5: Solve for x
    x = 311,020,290,733.84/639,098.84
  6. Step 6: Final answer
    x = 486,654.44

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Double scale
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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.