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Finding the Fourth Proportional to 522,081.80, 729,143.05 and 522,081.80

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Solution

The fourth proportional to 522,081.80, 729,143.05 and 522,081.80 is: 729,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,081.80 : 729,143.05 = 522,081.80 : x
  2. Step 2: Convert to fraction form
    522,081.80/729,143.05 = 522,081.80/x
  3. Step 3: Cross multiply
    522,081.80x = 729,143.05 × 522,081.80
  4. Step 4: Simplify right side
    522,081.80x = 380,672,316,001.49
  5. Step 5: Solve for x
    x = 380,672,316,001.49/522,081.80
  6. Step 6: Final answer
    x = 729,143.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.