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Finding the Fourth Proportional to 319,856.86, 441,399.54 and 176,613.76

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Solution

The fourth proportional to 319,856.86, 441,399.54 and 176,613.76 is: 243,725.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,856.86 : 441,399.54 = 176,613.76 : x
  2. Step 2: Convert to fraction form
    319,856.86/441,399.54 = 176,613.76/x
  3. Step 3: Cross multiply
    319,856.86x = 441,399.54 × 176,613.76
  4. Step 4: Simplify right side
    319,856.86x = 77,957,232,421.67
  5. Step 5: Solve for x
    x = 77,957,232,421.67/319,856.86
  6. Step 6: Final answer
    x = 243,725.37

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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.