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Finding the Fourth Proportional to 372,805.32, 514,477.26 and 211,657.08

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Solution

The fourth proportional to 372,805.32, 514,477.26 and 211,657.08 is: 292,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,805.32 : 514,477.26 = 211,657.08 : x
  2. Step 2: Convert to fraction form
    372,805.32/514,477.26 = 211,657.08/x
  3. Step 3: Cross multiply
    372,805.32x = 514,477.26 × 211,657.08
  4. Step 4: Simplify right side
    372,805.32x = 108,892,754,578.00
  5. Step 5: Solve for x
    x = 108,892,754,578.00/372,805.32
  6. Step 6: Final answer
    x = 292,090.13

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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.