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Finding the Fourth Proportional to 616,698.02, 851,305.60 and 375,058.21

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Solution

The fourth proportional to 616,698.02, 851,305.60 and 375,058.21 is: 517,739.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,698.02 : 851,305.60 = 375,058.21 : x
  2. Step 2: Convert to fraction form
    616,698.02/851,305.60 = 375,058.21/x
  3. Step 3: Cross multiply
    616,698.02x = 851,305.60 × 375,058.21
  4. Step 4: Simplify right side
    616,698.02x = 319,289,154,498.98
  5. Step 5: Solve for x
    x = 319,289,154,498.98/616,698.02
  6. Step 6: Final answer
    x = 517,739.87

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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.