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Finding the Fourth Proportional to 475,423.78, 656,089.95 and 260,559.22

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Solution

The fourth proportional to 475,423.78, 656,089.95 and 260,559.22 is: 359,574.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,423.78 : 656,089.95 = 260,559.22 : x
  2. Step 2: Convert to fraction form
    475,423.78/656,089.95 = 260,559.22/x
  3. Step 3: Cross multiply
    475,423.78x = 656,089.95 × 260,559.22
  4. Step 4: Simplify right side
    475,423.78x = 170,950,285,621.84
  5. Step 5: Solve for x
    x = 170,950,285,621.84/475,423.78
  6. Step 6: Final answer
    x = 359,574.54

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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.