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Finding the Fourth Proportional to 543,624.11, 750,576.48 and 339,766.55

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Solution

The fourth proportional to 543,624.11, 750,576.48 and 339,766.55 is: 469,112.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,624.11 : 750,576.48 = 339,766.55 : x
  2. Step 2: Convert to fraction form
    543,624.11/750,576.48 = 339,766.55/x
  3. Step 3: Cross multiply
    543,624.11x = 750,576.48 × 339,766.55
  4. Step 4: Simplify right side
    543,624.11x = 255,020,778,908.40
  5. Step 5: Solve for x
    x = 255,020,778,908.40/543,624.11
  6. Step 6: Final answer
    x = 469,112.34

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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.