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Finding the Fourth Proportional to 424,620.48, 586,054.80 and 243,400.80

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Solution

The fourth proportional to 424,620.48, 586,054.80 and 243,400.80 is: 335,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,620.48 : 586,054.80 = 243,400.80 : x
  2. Step 2: Convert to fraction form
    424,620.48/586,054.80 = 243,400.80/x
  3. Step 3: Cross multiply
    424,620.48x = 586,054.80 × 243,400.80
  4. Step 4: Simplify right side
    424,620.48x = 142,646,207,163.84
  5. Step 5: Solve for x
    x = 142,646,207,163.84/424,620.48
  6. Step 6: Final answer
    x = 335,938.12

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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.