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Finding the Fourth Proportional to 656,872.29, 906,412.41 and 384,886.17

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Solution

The fourth proportional to 656,872.29, 906,412.41 and 384,886.17 is: 531,101.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,872.29 : 906,412.41 = 384,886.17 : x
  2. Step 2: Convert to fraction form
    656,872.29/906,412.41 = 384,886.17/x
  3. Step 3: Cross multiply
    656,872.29x = 906,412.41 × 384,886.17
  4. Step 4: Simplify right side
    656,872.29x = 348,865,600,925.37
  5. Step 5: Solve for x
    x = 348,865,600,925.37/656,872.29
  6. Step 6: Final answer
    x = 531,101.11

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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.