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Finding the Fourth Proportional to 543,565.56, 749,999.70 and 328,701.12

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Solution

The fourth proportional to 543,565.56, 749,999.70 and 328,701.12 is: 453,534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,565.56 : 749,999.70 = 328,701.12 : x
  2. Step 2: Convert to fraction form
    543,565.56/749,999.70 = 328,701.12/x
  3. Step 3: Cross multiply
    543,565.56x = 749,999.70 × 328,701.12
  4. Step 4: Simplify right side
    543,565.56x = 246,525,741,389.66
  5. Step 5: Solve for x
    x = 246,525,741,389.66/543,565.56
  6. Step 6: Final answer
    x = 453,534.51

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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.