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Finding the Fourth Proportional to 475,758.25, 656,561.60 and 260,897.81

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Solution

The fourth proportional to 475,758.25, 656,561.60 and 260,897.81 is: 360,047.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,758.25 : 656,561.60 = 260,897.81 : x
  2. Step 2: Convert to fraction form
    475,758.25/656,561.60 = 260,897.81/x
  3. Step 3: Cross multiply
    475,758.25x = 656,561.60 × 260,897.81
  4. Step 4: Simplify right side
    475,758.25x = 171,295,479,961.17
  5. Step 5: Solve for x
    x = 171,295,479,961.17/475,758.25
  6. Step 6: Final answer
    x = 360,047.32

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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.