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Finding the Fourth Proportional to 319,616.32, 441,062.40 and 176,374.48

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Solution

The fourth proportional to 319,616.32, 441,062.40 and 176,374.48 is: 243,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,616.32 : 441,062.40 = 176,374.48 : x
  2. Step 2: Convert to fraction form
    319,616.32/441,062.40 = 176,374.48/x
  3. Step 3: Cross multiply
    319,616.32x = 441,062.40 × 176,374.48
  4. Step 4: Simplify right side
    319,616.32x = 77,792,151,447.55
  5. Step 5: Solve for x
    x = 77,792,151,447.55/319,616.32
  6. Step 6: Final answer
    x = 243,392.30

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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.