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Finding the Fourth Proportional to 542,786.86, 748,555.59 and 338,856.67

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Solution

The fourth proportional to 542,786.86, 748,555.59 and 338,856.67 is: 467,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,786.86 : 748,555.59 = 338,856.67 : x
  2. Step 2: Convert to fraction form
    542,786.86/748,555.59 = 338,856.67/x
  3. Step 3: Cross multiply
    542,786.86x = 748,555.59 × 338,856.67
  4. Step 4: Simplify right side
    542,786.86x = 253,653,054,537.29
  5. Step 5: Solve for x
    x = 253,653,054,537.29/542,786.86
  6. Step 6: Final answer
    x = 467,316.13

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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.