Home / 439,272.18-606,209.67-243,041.76

Finding the Fourth Proportional to 439,272.18, 606,209.67 and 243,041.76

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Solution

The fourth proportional to 439,272.18, 606,209.67 and 243,041.76 is: 335,405.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,272.18 : 606,209.67 = 243,041.76 : x
  2. Step 2: Convert to fraction form
    439,272.18/606,209.67 = 243,041.76/x
  3. Step 3: Cross multiply
    439,272.18x = 606,209.67 × 243,041.76
  4. Step 4: Simplify right side
    439,272.18x = 147,334,265,125.82
  5. Step 5: Solve for x
    x = 147,334,265,125.82/439,272.18
  6. Step 6: Final answer
    x = 335,405.41

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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.