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Finding the Fourth Proportional to 542,253.36, 748,315.20 and 300,541.32

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Solution

The fourth proportional to 542,253.36, 748,315.20 and 300,541.32 is: 414,750.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,253.36 : 748,315.20 = 300,541.32 : x
  2. Step 2: Convert to fraction form
    542,253.36/748,315.20 = 300,541.32/x
  3. Step 3: Cross multiply
    542,253.36x = 748,315.20 × 300,541.32
  4. Step 4: Simplify right side
    542,253.36x = 224,899,637,984.06
  5. Step 5: Solve for x
    x = 224,899,637,984.06/542,253.36
  6. Step 6: Final answer
    x = 414,750.10

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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.