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Finding the Fourth Proportional to 540,381.95, 810,589.40 and 185,390.95

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Solution

The fourth proportional to 540,381.95, 810,589.40 and 185,390.95 is: 278,092.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,381.95 : 810,589.40 = 185,390.95 : x
  2. Step 2: Convert to fraction form
    540,381.95/810,589.40 = 185,390.95/x
  3. Step 3: Cross multiply
    540,381.95x = 810,589.40 × 185,390.95
  4. Step 4: Simplify right side
    540,381.95x = 150,275,938,925.93
  5. Step 5: Solve for x
    x = 150,275,938,925.93/540,381.95
  6. Step 6: Final answer
    x = 278,092.08

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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.