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Finding the Fourth Proportional to 472,866.80, 652,543.48 and 258,006.72

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Solution

The fourth proportional to 472,866.80, 652,543.48 and 258,006.72 is: 356,042.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,866.80 : 652,543.48 = 258,006.72 : x
  2. Step 2: Convert to fraction form
    472,866.80/652,543.48 = 258,006.72/x
  3. Step 3: Cross multiply
    472,866.80x = 652,543.48 × 258,006.72
  4. Step 4: Simplify right side
    472,866.80x = 168,360,602,932.19
  5. Step 5: Solve for x
    x = 168,360,602,932.19/472,866.80
  6. Step 6: Final answer
    x = 356,042.34

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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.