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Finding the Fourth Proportional to 403,456.76, 556,583.29 and 260,262.93

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Solution

The fourth proportional to 403,456.76, 556,583.29 and 260,262.93 is: 359,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,456.76 : 556,583.29 = 260,262.93 : x
  2. Step 2: Convert to fraction form
    403,456.76/556,583.29 = 260,262.93/x
  3. Step 3: Cross multiply
    403,456.76x = 556,583.29 × 260,262.93
  4. Step 4: Simplify right side
    403,456.76x = 144,857,997,844.44
  5. Step 5: Solve for x
    x = 144,857,997,844.44/403,456.76
  6. Step 6: Final answer
    x = 359,042.19

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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.