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Finding the Fourth Proportional to 425,343.51, 586,976.09 and 234,356.45

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Solution

The fourth proportional to 425,343.51, 586,976.09 and 234,356.45 is: 323,413.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,343.51 : 586,976.09 = 234,356.45 : x
  2. Step 2: Convert to fraction form
    425,343.51/586,976.09 = 234,356.45/x
  3. Step 3: Cross multiply
    425,343.51x = 586,976.09 × 234,356.45
  4. Step 4: Simplify right side
    425,343.51x = 137,561,628,580.62
  5. Step 5: Solve for x
    x = 137,561,628,580.62/425,343.51
  6. Step 6: Final answer
    x = 323,413.02

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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.