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Finding the Fourth Proportional to 529,751.67, 789,637.10 and 487,236.39

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Solution

The fourth proportional to 529,751.67, 789,637.10 and 487,236.39 is: 726,264.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,751.67 : 789,637.10 = 487,236.39 : x
  2. Step 2: Convert to fraction form
    529,751.67/789,637.10 = 487,236.39/x
  3. Step 3: Cross multiply
    529,751.67x = 789,637.10 × 487,236.39
  4. Step 4: Simplify right side
    529,751.67x = 384,739,930,014.07
  5. Step 5: Solve for x
    x = 384,739,930,014.07/529,751.67
  6. Step 6: Final answer
    x = 726,264.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.