Home / 638,926.30-881,707.35-352,473.82

Finding the Fourth Proportional to 638,926.30, 881,707.35 and 352,473.82

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Solution

The fourth proportional to 638,926.30, 881,707.35 and 352,473.82 is: 486,407.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,926.30 : 881,707.35 = 352,473.82 : x
  2. Step 2: Convert to fraction form
    638,926.30/881,707.35 = 352,473.82/x
  3. Step 3: Cross multiply
    638,926.30x = 881,707.35 × 352,473.82
  4. Step 4: Simplify right side
    638,926.30x = 310,778,757,776.58
  5. Step 5: Solve for x
    x = 310,778,757,776.58/638,926.30
  6. Step 6: Final answer
    x = 486,407.83

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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.