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Finding the Fourth Proportional to 543,843.78, 750,573.62 and 328,985.39

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Solution

The fourth proportional to 543,843.78, 750,573.62 and 328,985.39 is: 454,041.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,843.78 : 750,573.62 = 328,985.39 : x
  2. Step 2: Convert to fraction form
    543,843.78/750,573.62 = 328,985.39/x
  3. Step 3: Cross multiply
    543,843.78x = 750,573.62 × 328,985.39
  4. Step 4: Simplify right side
    543,843.78x = 246,927,749,701.62
  5. Step 5: Solve for x
    x = 246,927,749,701.62/543,843.78
  6. Step 6: Final answer
    x = 454,041.69

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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.