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Finding the Fourth Proportional to 475,853.10, 656,333.18 and 404,119.50

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Solution

The fourth proportional to 475,853.10, 656,333.18 and 404,119.50 is: 557,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,853.10 : 656,333.18 = 404,119.50 : x
  2. Step 2: Convert to fraction form
    475,853.10/656,333.18 = 404,119.50/x
  3. Step 3: Cross multiply
    475,853.10x = 656,333.18 × 404,119.50
  4. Step 4: Simplify right side
    475,853.10x = 265,237,036,535.01
  5. Step 5: Solve for x
    x = 265,237,036,535.01/475,853.10
  6. Step 6: Final answer
    x = 557,392.68

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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.