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Finding the Fourth Proportional to 552,307.28, 762,095.12 and 310,575.44

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Solution

The fourth proportional to 552,307.28, 762,095.12 and 310,575.44 is: 428,544.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,307.28 : 762,095.12 = 310,575.44 : x
  2. Step 2: Convert to fraction form
    552,307.28/762,095.12 = 310,575.44/x
  3. Step 3: Cross multiply
    552,307.28x = 762,095.12 × 310,575.44
  4. Step 4: Simplify right side
    552,307.28x = 236,688,027,568.21
  5. Step 5: Solve for x
    x = 236,688,027,568.21/552,307.28
  6. Step 6: Final answer
    x = 428,544.11

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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.