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Finding the Fourth Proportional to 542,068.25, 748,043.15 and 300,350.07

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Solution

The fourth proportional to 542,068.25, 748,043.15 and 300,350.07 is: 414,476.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,068.25 : 748,043.15 = 300,350.07 : x
  2. Step 2: Convert to fraction form
    542,068.25/748,043.15 = 300,350.07/x
  3. Step 3: Cross multiply
    542,068.25x = 748,043.15 × 300,350.07
  4. Step 4: Simplify right side
    542,068.25x = 224,674,810,963.77
  5. Step 5: Solve for x
    x = 224,674,810,963.77/542,068.25
  6. Step 6: Final answer
    x = 414,476.98

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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.