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Finding the Fourth Proportional to 608,875.20, 913,312.80 and 584,380.80

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Solution

The fourth proportional to 608,875.20, 913,312.80 and 584,380.80 is: 876,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,875.20 : 913,312.80 = 584,380.80 : x
  2. Step 2: Convert to fraction form
    608,875.20/913,312.80 = 584,380.80/x
  3. Step 3: Cross multiply
    608,875.20x = 913,312.80 × 584,380.80
  4. Step 4: Simplify right side
    608,875.20x = 533,722,464,714.24
  5. Step 5: Solve for x
    x = 533,722,464,714.24/608,875.20
  6. Step 6: Final answer
    x = 876,571.20

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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.