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Finding the Fourth Proportional to 319,280.32, 440,605.64 and 176,048.22

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Solution

The fourth proportional to 319,280.32, 440,605.64 and 176,048.22 is: 242,945.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,280.32 : 440,605.64 = 176,048.22 : x
  2. Step 2: Convert to fraction form
    319,280.32/440,605.64 = 176,048.22/x
  3. Step 3: Cross multiply
    319,280.32x = 440,605.64 × 176,048.22
  4. Step 4: Simplify right side
    319,280.32x = 77,567,838,643.96
  5. Step 5: Solve for x
    x = 77,567,838,643.96/319,280.32
  6. Step 6: Final answer
    x = 242,945.88

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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.