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Finding the Fourth Proportional to 543,661.92, 750,141.54 and 314,137.08

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Solution

The fourth proportional to 543,661.92, 750,141.54 and 314,137.08 is: 433,444.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,661.92 : 750,141.54 = 314,137.08 : x
  2. Step 2: Convert to fraction form
    543,661.92/750,141.54 = 314,137.08/x
  3. Step 3: Cross multiply
    543,661.92x = 750,141.54 × 314,137.08
  4. Step 4: Simplify right side
    543,661.92x = 235,647,272,962.30
  5. Step 5: Solve for x
    x = 235,647,272,962.30/543,661.92
  6. Step 6: Final answer
    x = 433,444.51

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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.