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Finding the Fourth Proportional to 540,281.80, 810,657.80 and 256,171.36

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Solution

The fourth proportional to 540,281.80, 810,657.80 and 256,171.36 is: 384,368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,281.80 : 810,657.80 = 256,171.36 : x
  2. Step 2: Convert to fraction form
    540,281.80/810,657.80 = 256,171.36/x
  3. Step 3: Cross multiply
    540,281.80x = 810,657.80 × 256,171.36
  4. Step 4: Simplify right side
    540,281.80x = 207,667,309,573.25
  5. Step 5: Solve for x
    x = 207,667,309,573.25/540,281.80
  6. Step 6: Final answer
    x = 384,368.51

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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.