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Finding the Fourth Proportional to 661,670.61, 913,103.55 and 367,365.26

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Solution

The fourth proportional to 661,670.61, 913,103.55 and 367,365.26 is: 506,963.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,670.61 : 913,103.55 = 367,365.26 : x
  2. Step 2: Convert to fraction form
    661,670.61/913,103.55 = 367,365.26/x
  3. Step 3: Cross multiply
    661,670.61x = 913,103.55 × 367,365.26
  4. Step 4: Simplify right side
    661,670.61x = 335,442,525,335.43
  5. Step 5: Solve for x
    x = 335,442,525,335.43/661,670.61
  6. Step 6: Final answer
    x = 506,963.01

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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.