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Finding the Fourth Proportional to 400,368.62, 552,492.19 and 239,312.47

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Solution

The fourth proportional to 400,368.62, 552,492.19 and 239,312.47 is: 330,241.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,368.62 : 552,492.19 = 239,312.47 : x
  2. Step 2: Convert to fraction form
    400,368.62/552,492.19 = 239,312.47/x
  3. Step 3: Cross multiply
    400,368.62x = 552,492.19 × 239,312.47
  4. Step 4: Simplify right side
    400,368.62x = 132,218,270,644.61
  5. Step 5: Solve for x
    x = 132,218,270,644.61/400,368.62
  6. Step 6: Final answer
    x = 330,241.34

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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.