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Finding the Fourth Proportional to 319,253.48, 440,572.92 and 176,019.20

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Solution

The fourth proportional to 319,253.48, 440,572.92 and 176,019.20 is: 242,908.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,253.48 : 440,572.92 = 176,019.20 : x
  2. Step 2: Convert to fraction form
    319,253.48/440,572.92 = 176,019.20/x
  3. Step 3: Cross multiply
    319,253.48x = 440,572.92 × 176,019.20
  4. Step 4: Simplify right side
    319,253.48x = 77,549,292,920.06
  5. Step 5: Solve for x
    x = 77,549,292,920.06/319,253.48
  6. Step 6: Final answer
    x = 242,908.21

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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.