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Finding the Fourth Proportional to 319,483.16, 440,887.22 and 176,242.92

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Solution

The fourth proportional to 319,483.16, 440,887.22 and 176,242.92 is: 243,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,483.16 : 440,887.22 = 176,242.92 : x
  2. Step 2: Convert to fraction form
    319,483.16/440,887.22 = 176,242.92/x
  3. Step 3: Cross multiply
    319,483.16x = 440,887.22 × 176,242.92
  4. Step 4: Simplify right side
    319,483.16x = 77,703,251,043.48
  5. Step 5: Solve for x
    x = 77,703,251,043.48/319,483.16
  6. Step 6: Final answer
    x = 243,215.48

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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.