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Finding the Fourth Proportional to 536,427.81, 740,084.27 and 342,948.78

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Solution

The fourth proportional to 536,427.81, 740,084.27 and 342,948.78 is: 473,150.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,427.81 : 740,084.27 = 342,948.78 : x
  2. Step 2: Convert to fraction form
    536,427.81/740,084.27 = 342,948.78/x
  3. Step 3: Cross multiply
    536,427.81x = 740,084.27 × 342,948.78
  4. Step 4: Simplify right side
    536,427.81x = 253,810,995,778.95
  5. Step 5: Solve for x
    x = 253,810,995,778.95/536,427.81
  6. Step 6: Final answer
    x = 473,150.33

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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.