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Finding the Fourth Proportional to 543,520.84, 750,080.34 and 314,070.52

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Solution

The fourth proportional to 543,520.84, 750,080.34 and 314,070.52 is: 433,429.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,520.84 : 750,080.34 = 314,070.52 : x
  2. Step 2: Convert to fraction form
    543,520.84/750,080.34 = 314,070.52/x
  3. Step 3: Cross multiply
    543,520.84x = 750,080.34 × 314,070.52
  4. Step 4: Simplify right side
    543,520.84x = 235,578,122,425.58
  5. Step 5: Solve for x
    x = 235,578,122,425.58/543,520.84
  6. Step 6: Final answer
    x = 433,429.79

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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.