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Finding the Fourth Proportional to 522,969.93, 722,043.67 and 401,891.13

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Solution

The fourth proportional to 522,969.93, 722,043.67 and 401,891.13 is: 554,875.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,969.93 : 722,043.67 = 401,891.13 : x
  2. Step 2: Convert to fraction form
    522,969.93/722,043.67 = 401,891.13/x
  3. Step 3: Cross multiply
    522,969.93x = 722,043.67 × 401,891.13
  4. Step 4: Simplify right side
    522,969.93x = 290,182,946,445.65
  5. Step 5: Solve for x
    x = 290,182,946,445.65/522,969.93
  6. Step 6: Final answer
    x = 554,875.01

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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.