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Finding the Fourth Proportional to 438,925.56, 605,715.41 and 245,333.01

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Solution

The fourth proportional to 438,925.56, 605,715.41 and 245,333.01 is: 338,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,925.56 : 605,715.41 = 245,333.01 : x
  2. Step 2: Convert to fraction form
    438,925.56/605,715.41 = 245,333.01/x
  3. Step 3: Cross multiply
    438,925.56x = 605,715.41 × 245,333.01
  4. Step 4: Simplify right side
    438,925.56x = 148,601,983,512.02
  5. Step 5: Solve for x
    x = 148,601,983,512.02/438,925.56
  6. Step 6: Final answer
    x = 338,558.51

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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.