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Finding the Fourth Proportional to 375,934.32, 518,675.99 and 230,590.76

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Solution

The fourth proportional to 375,934.32, 518,675.99 and 230,590.76 is: 318,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,934.32 : 518,675.99 = 230,590.76 : x
  2. Step 2: Convert to fraction form
    375,934.32/518,675.99 = 230,590.76/x
  3. Step 3: Cross multiply
    375,934.32x = 518,675.99 × 230,590.76
  4. Step 4: Simplify right side
    375,934.32x = 119,601,886,981.52
  5. Step 5: Solve for x
    x = 119,601,886,981.52/375,934.32
  6. Step 6: Final answer
    x = 318,145.70

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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.