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Finding the Fourth Proportional to 372,657.81, 514,314.24 and 211,565.01

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Solution

The fourth proportional to 372,657.81, 514,314.24 and 211,565.01 is: 291,986.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,657.81 : 514,314.24 = 211,565.01 : x
  2. Step 2: Convert to fraction form
    372,657.81/514,314.24 = 211,565.01/x
  3. Step 3: Cross multiply
    372,657.81x = 514,314.24 × 211,565.01
  4. Step 4: Simplify right side
    372,657.81x = 108,810,897,328.74
  5. Step 5: Solve for x
    x = 108,810,897,328.74/372,657.81
  6. Step 6: Final answer
    x = 291,986.09

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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.