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Finding the Fourth Proportional to 431,420.48, 595,363.26 and 240,446.17

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Solution

The fourth proportional to 431,420.48, 595,363.26 and 240,446.17 is: 331,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,420.48 : 595,363.26 = 240,446.17 : x
  2. Step 2: Convert to fraction form
    431,420.48/595,363.26 = 240,446.17/x
  3. Step 3: Cross multiply
    431,420.48x = 595,363.26 × 240,446.17
  4. Step 4: Simplify right side
    431,420.48x = 143,152,817,271.59
  5. Step 5: Solve for x
    x = 143,152,817,271.59/431,420.48
  6. Step 6: Final answer
    x = 331,817.39

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1.5x scale

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.