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Finding the Fourth Proportional to 319,689.77, 441,140.48 and 176,440.59

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Solution

The fourth proportional to 319,689.77, 441,140.48 and 176,440.59 is: 243,470.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,689.77 : 441,140.48 = 176,440.59 : x
  2. Step 2: Convert to fraction form
    319,689.77/441,140.48 = 176,440.59/x
  3. Step 3: Cross multiply
    319,689.77x = 441,140.48 × 176,440.59
  4. Step 4: Simplify right side
    319,689.77x = 77,835,085,681.88
  5. Step 5: Solve for x
    x = 77,835,085,681.88/319,689.77
  6. Step 6: Final answer
    x = 243,470.68

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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.