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Finding the Fourth Proportional to 319,489.76, 440,948.04 and 192,235.52

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Solution

The fourth proportional to 319,489.76, 440,948.04 and 192,235.52 is: 265,316.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,489.76 : 440,948.04 = 192,235.52 : x
  2. Step 2: Convert to fraction form
    319,489.76/440,948.04 = 192,235.52/x
  3. Step 3: Cross multiply
    319,489.76x = 440,948.04 × 192,235.52
  4. Step 4: Simplify right side
    319,489.76x = 84,765,875,762.38
  5. Step 5: Solve for x
    x = 84,765,875,762.38/319,489.76
  6. Step 6: Final answer
    x = 265,316.41

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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.