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Finding the Fourth Proportional to 436,987.20, 602,560.36 and 299,188.81

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Solution

The fourth proportional to 436,987.20, 602,560.36 and 299,188.81 is: 412,550.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,987.20 : 602,560.36 = 299,188.81 : x
  2. Step 2: Convert to fraction form
    436,987.20/602,560.36 = 299,188.81/x
  3. Step 3: Cross multiply
    436,987.20x = 602,560.36 × 299,188.81
  4. Step 4: Simplify right side
    436,987.20x = 180,279,318,188.76
  5. Step 5: Solve for x
    x = 180,279,318,188.76/436,987.20
  6. Step 6: Final answer
    x = 412,550.57

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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.