Home / 539,109.12-807,580.80-268,421.76

Finding the Fourth Proportional to 539,109.12, 807,580.80 and 268,421.76

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Solution

The fourth proportional to 539,109.12, 807,580.80 and 268,421.76 is: 402,093.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,109.12 : 807,580.80 = 268,421.76 : x
  2. Step 2: Convert to fraction form
    539,109.12/807,580.80 = 268,421.76/x
  3. Step 3: Cross multiply
    539,109.12x = 807,580.80 × 268,421.76
  4. Step 4: Simplify right side
    539,109.12x = 216,772,259,678.21
  5. Step 5: Solve for x
    x = 216,772,259,678.21/539,109.12
  6. Step 6: Final answer
    x = 402,093.48

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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.