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Finding the Fourth Proportional to 456,751.29, 630,264.19 and 263,187.21

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Solution

The fourth proportional to 456,751.29, 630,264.19 and 263,187.21 is: 363,168.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,751.29 : 630,264.19 = 263,187.21 : x
  2. Step 2: Convert to fraction form
    456,751.29/630,264.19 = 263,187.21/x
  3. Step 3: Cross multiply
    456,751.29x = 630,264.19 × 263,187.21
  4. Step 4: Simplify right side
    456,751.29x = 165,877,473,729.01
  5. Step 5: Solve for x
    x = 165,877,473,729.01/456,751.29
  6. Step 6: Final answer
    x = 363,168.05

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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.