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Finding the Fourth Proportional to 375,678.35, 518,491.76 and 237,870.08

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Solution

The fourth proportional to 375,678.35, 518,491.76 and 237,870.08 is: 328,295.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,678.35 : 518,491.76 = 237,870.08 : x
  2. Step 2: Convert to fraction form
    375,678.35/518,491.76 = 237,870.08/x
  3. Step 3: Cross multiply
    375,678.35x = 518,491.76 × 237,870.08
  4. Step 4: Simplify right side
    375,678.35x = 123,333,678,228.89
  5. Step 5: Solve for x
    x = 123,333,678,228.89/375,678.35
  6. Step 6: Final answer
    x = 328,295.95

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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.