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Finding the Fourth Proportional to 507,641.10, 700,545.48 and 278,161.92

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Solution

The fourth proportional to 507,641.10, 700,545.48 and 278,161.92 is: 383,863.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,641.10 : 700,545.48 = 278,161.92 : x
  2. Step 2: Convert to fraction form
    507,641.10/700,545.48 = 278,161.92/x
  3. Step 3: Cross multiply
    507,641.10x = 700,545.48 × 278,161.92
  4. Step 4: Simplify right side
    507,641.10x = 194,865,075,764.12
  5. Step 5: Solve for x
    x = 194,865,075,764.12/507,641.10
  6. Step 6: Final answer
    x = 383,863.87

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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.