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Finding the Fourth Proportional to 453,672.30, 626,127.39 and 260,155.74

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Solution

The fourth proportional to 453,672.30, 626,127.39 and 260,155.74 is: 359,049.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,672.30 : 626,127.39 = 260,155.74 : x
  2. Step 2: Convert to fraction form
    453,672.30/626,127.39 = 260,155.74/x
  3. Step 3: Cross multiply
    453,672.30x = 626,127.39 × 260,155.74
  4. Step 4: Simplify right side
    453,672.30x = 162,890,634,479.72
  5. Step 5: Solve for x
    x = 162,890,634,479.72/453,672.30
  6. Step 6: Final answer
    x = 359,049.11

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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.