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Finding the Fourth Proportional to 319,106.66, 440,365.75 and 175,866.39

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Solution

The fourth proportional to 319,106.66, 440,365.75 and 175,866.39 is: 242,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,106.66 : 440,365.75 = 175,866.39 : x
  2. Step 2: Convert to fraction form
    319,106.66/440,365.75 = 175,866.39/x
  3. Step 3: Cross multiply
    319,106.66x = 440,365.75 × 175,866.39
  4. Step 4: Simplify right side
    319,106.66x = 77,445,534,292.48
  5. Step 5: Solve for x
    x = 77,445,534,292.48/319,106.66
  6. Step 6: Final answer
    x = 242,694.83

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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.