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Finding the Fourth Proportional to 453,050.10, 679,793.85 and 319,643.10

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Solution

The fourth proportional to 453,050.10, 679,793.85 and 319,643.10 is: 479,618.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,050.10 : 679,793.85 = 319,643.10 : x
  2. Step 2: Convert to fraction form
    453,050.10/679,793.85 = 319,643.10/x
  3. Step 3: Cross multiply
    453,050.10x = 679,793.85 × 319,643.10
  4. Step 4: Simplify right side
    453,050.10x = 217,291,413,574.94
  5. Step 5: Solve for x
    x = 217,291,413,574.94/453,050.10
  6. Step 6: Final answer
    x = 479,618.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.