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Finding the Fourth Proportional to 543,525.80, 750,134.80 and 328,667.40

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Solution

The fourth proportional to 543,525.80, 750,134.80 and 328,667.40 is: 453,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,525.80 : 750,134.80 = 328,667.40 : x
  2. Step 2: Convert to fraction form
    543,525.80/750,134.80 = 328,667.40/x
  3. Step 3: Cross multiply
    543,525.80x = 750,134.80 × 328,667.40
  4. Step 4: Simplify right side
    543,525.80x = 246,544,854,365.52
  5. Step 5: Solve for x
    x = 246,544,854,365.52/543,525.80
  6. Step 6: Final answer
    x = 453,602.85

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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.