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Finding the Fourth Proportional to 534,237.70, 801,810.15 and 218,920.90

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Solution

The fourth proportional to 534,237.70, 801,810.15 and 218,920.90 is: 328,567.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,237.70 : 801,810.15 = 218,920.90 : x
  2. Step 2: Convert to fraction form
    534,237.70/801,810.15 = 218,920.90/x
  3. Step 3: Cross multiply
    534,237.70x = 801,810.15 × 218,920.90
  4. Step 4: Simplify right side
    534,237.70x = 175,532,999,667.14
  5. Step 5: Solve for x
    x = 175,532,999,667.14/534,237.70
  6. Step 6: Final answer
    x = 328,567.23

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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.