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Finding the Fourth Proportional to 457,806.30, 687,001.05 and 268,266.30

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Solution

The fourth proportional to 457,806.30, 687,001.05 and 268,266.30 is: 402,570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,806.30 : 687,001.05 = 268,266.30 : x
  2. Step 2: Convert to fraction form
    457,806.30/687,001.05 = 268,266.30/x
  3. Step 3: Cross multiply
    457,806.30x = 687,001.05 × 268,266.30
  4. Step 4: Simplify right side
    457,806.30x = 184,299,229,779.62
  5. Step 5: Solve for x
    x = 184,299,229,779.62/457,806.30
  6. Step 6: Final answer
    x = 402,570.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.