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Finding the Fourth Proportional to 875,190.52, 1,207,764 and 472,782.52

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Solution

The fourth proportional to 875,190.52, 1,207,764 and 472,782.52 is: 652,440.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,190.52 : 1,207,764 = 472,782.52 : x
  2. Step 2: Convert to fraction form
    875,190.52/1,207,764 = 472,782.52/x
  3. Step 3: Cross multiply
    875,190.52x = 1,207,764 × 472,782.52
  4. Step 4: Simplify right side
    875,190.52x = 571,009,707,485.28
  5. Step 5: Solve for x
    x = 571,009,707,485.28/875,190.52
  6. Step 6: Final answer
    x = 652,440.46

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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.