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Finding the Fourth Proportional to 417,828.72, 576,735.12 and 266,925.68

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Solution

The fourth proportional to 417,828.72, 576,735.12 and 266,925.68 is: 368,441.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,828.72 : 576,735.12 = 266,925.68 : x
  2. Step 2: Convert to fraction form
    417,828.72/576,735.12 = 266,925.68/x
  3. Step 3: Cross multiply
    417,828.72x = 576,735.12 × 266,925.68
  4. Step 4: Simplify right side
    417,828.72x = 153,945,414,085.88
  5. Step 5: Solve for x
    x = 153,945,414,085.88/417,828.72
  6. Step 6: Final answer
    x = 368,441.44

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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.