Home / 542,001.51-747,942.23-312,568.47

Finding the Fourth Proportional to 542,001.51, 747,942.23 and 312,568.47

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Solution

The fourth proportional to 542,001.51, 747,942.23 and 312,568.47 is: 431,333.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,001.51 : 747,942.23 = 312,568.47 : x
  2. Step 2: Convert to fraction form
    542,001.51/747,942.23 = 312,568.47/x
  3. Step 3: Cross multiply
    542,001.51x = 747,942.23 × 312,568.47
  4. Step 4: Simplify right side
    542,001.51x = 233,783,159,260.91
  5. Step 5: Solve for x
    x = 233,783,159,260.91/542,001.51
  6. Step 6: Final answer
    x = 431,333.04

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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.