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Finding the Fourth Proportional to 472,870.36, 652,558.68 and 258,009.76

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Solution

The fourth proportional to 472,870.36, 652,558.68 and 258,009.76 is: 356,052.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,870.36 : 652,558.68 = 258,009.76 : x
  2. Step 2: Convert to fraction form
    472,870.36/652,558.68 = 258,009.76/x
  3. Step 3: Cross multiply
    472,870.36x = 652,558.68 × 258,009.76
  4. Step 4: Simplify right side
    472,870.36x = 168,366,508,412.72
  5. Step 5: Solve for x
    x = 168,366,508,412.72/472,870.36
  6. Step 6: Final answer
    x = 356,052.15

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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.