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Finding the Fourth Proportional to 393,337.38, 542,804.37 and 223,604.18

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Solution

The fourth proportional to 393,337.38, 542,804.37 and 223,604.18 is: 308,573.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,337.38 : 542,804.37 = 223,604.18 : x
  2. Step 2: Convert to fraction form
    393,337.38/542,804.37 = 223,604.18/x
  3. Step 3: Cross multiply
    393,337.38x = 542,804.37 × 223,604.18
  4. Step 4: Simplify right side
    393,337.38x = 121,373,326,054.27
  5. Step 5: Solve for x
    x = 121,373,326,054.27/393,337.38
  6. Step 6: Final answer
    x = 308,573.08

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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.