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Finding the Fourth Proportional to 464,017.32, 640,396.98 and 260,123.28

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Solution

The fourth proportional to 464,017.32, 640,396.98 and 260,123.28 is: 358,999.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,017.32 : 640,396.98 = 260,123.28 : x
  2. Step 2: Convert to fraction form
    464,017.32/640,396.98 = 260,123.28/x
  3. Step 3: Cross multiply
    464,017.32x = 640,396.98 × 260,123.28
  4. Step 4: Simplify right side
    464,017.32x = 166,582,162,939.69
  5. Step 5: Solve for x
    x = 166,582,162,939.69/464,017.32
  6. Step 6: Final answer
    x = 358,999.88

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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.