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Finding the Fourth Proportional to 583,012.67, 872,543.78 and 358,515.30

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Solution

The fourth proportional to 583,012.67, 872,543.78 and 358,515.30 is: 536,558.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,012.67 : 872,543.78 = 358,515.30 : x
  2. Step 2: Convert to fraction form
    583,012.67/872,543.78 = 358,515.30/x
  3. Step 3: Cross multiply
    583,012.67x = 872,543.78 × 358,515.30
  4. Step 4: Simplify right side
    583,012.67x = 312,820,295,049.83
  5. Step 5: Solve for x
    x = 312,820,295,049.83/583,012.67
  6. Step 6: Final answer
    x = 536,558.31

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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.