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Finding the Fourth Proportional to 319,220.80, 440,544.54 and 175,980.58

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Solution

The fourth proportional to 319,220.80, 440,544.54 and 175,980.58 is: 242,864.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,220.80 : 440,544.54 = 175,980.58 : x
  2. Step 2: Convert to fraction form
    319,220.80/440,544.54 = 175,980.58/x
  3. Step 3: Cross multiply
    319,220.80x = 440,544.54 × 175,980.58
  4. Step 4: Simplify right side
    319,220.80x = 77,527,283,665.03
  5. Step 5: Solve for x
    x = 77,527,283,665.03/319,220.80
  6. Step 6: Final answer
    x = 242,864.14

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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.