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Finding the Fourth Proportional to 556,029.72, 767,403 and 352,099.26

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Solution

The fourth proportional to 556,029.72, 767,403 and 352,099.26 is: 485,948.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,029.72 : 767,403 = 352,099.26 : x
  2. Step 2: Convert to fraction form
    556,029.72/767,403 = 352,099.26/x
  3. Step 3: Cross multiply
    556,029.72x = 767,403 × 352,099.26
  4. Step 4: Simplify right side
    556,029.72x = 270,202,028,421.78
  5. Step 5: Solve for x
    x = 270,202,028,421.78/556,029.72
  6. Step 6: Final answer
    x = 485,948.90

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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.