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Finding the Fourth Proportional to 459,445.80, 633,942.28 and 268,422.29

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Solution

The fourth proportional to 459,445.80, 633,942.28 and 268,422.29 is: 370,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,445.80 : 633,942.28 = 268,422.29 : x
  2. Step 2: Convert to fraction form
    459,445.80/633,942.28 = 268,422.29/x
  3. Step 3: Cross multiply
    459,445.80x = 633,942.28 × 268,422.29
  4. Step 4: Simplify right side
    459,445.80x = 170,164,238,068.52
  5. Step 5: Solve for x
    x = 170,164,238,068.52/459,445.80
  6. Step 6: Final answer
    x = 370,368.47

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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.