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Finding the Fourth Proportional to 319,221.34, 440,528.43 and 175,986.52

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Solution

The fourth proportional to 319,221.34, 440,528.43 and 175,986.52 is: 242,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,221.34 : 440,528.43 = 175,986.52 : x
  2. Step 2: Convert to fraction form
    319,221.34/440,528.43 = 175,986.52/x
  3. Step 3: Cross multiply
    319,221.34x = 440,528.43 × 175,986.52
  4. Step 4: Simplify right side
    319,221.34x = 77,527,065,356.76
  5. Step 5: Solve for x
    x = 77,527,065,356.76/319,221.34
  6. Step 6: Final answer
    x = 242,863.04

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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.