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Finding the Fourth Proportional to 436,818.29, 602,691.55 and 255,574.78

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Solution

The fourth proportional to 436,818.29, 602,691.55 and 255,574.78 is: 352,624.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,818.29 : 602,691.55 = 255,574.78 : x
  2. Step 2: Convert to fraction form
    436,818.29/602,691.55 = 255,574.78/x
  3. Step 3: Cross multiply
    436,818.29x = 602,691.55 × 255,574.78
  4. Step 4: Simplify right side
    436,818.29x = 154,032,758,153.44
  5. Step 5: Solve for x
    x = 154,032,758,153.44/436,818.29
  6. Step 6: Final answer
    x = 352,624.34

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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.