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Finding the Fourth Proportional to 313,393.57, 432,493.60 and 175,578.45

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Solution

The fourth proportional to 313,393.57, 432,493.60 and 175,578.45 is: 242,304.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,393.57 : 432,493.60 = 175,578.45 : x
  2. Step 2: Convert to fraction form
    313,393.57/432,493.60 = 175,578.45/x
  3. Step 3: Cross multiply
    313,393.57x = 432,493.60 × 175,578.45
  4. Step 4: Simplify right side
    313,393.57x = 75,936,558,030.21
  5. Step 5: Solve for x
    x = 75,936,558,030.21/313,393.57
  6. Step 6: Final answer
    x = 242,304.14

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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.