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Finding the Fourth Proportional to 475,670.56, 656,407.60 and 260,805.60

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Solution

The fourth proportional to 475,670.56, 656,407.60 and 260,805.60 is: 359,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,670.56 : 656,407.60 = 260,805.60 : x
  2. Step 2: Convert to fraction form
    475,670.56/656,407.60 = 260,805.60/x
  3. Step 3: Cross multiply
    475,670.56x = 656,407.60 × 260,805.60
  4. Step 4: Simplify right side
    475,670.56x = 171,194,777,962.56
  5. Step 5: Solve for x
    x = 171,194,777,962.56/475,670.56
  6. Step 6: Final answer
    x = 359,901.98

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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.