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Finding the Fourth Proportional to 709,365.73, 978,946.27 and 403,486.10

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Solution

The fourth proportional to 709,365.73, 978,946.27 and 403,486.10 is: 556,823.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,365.73 : 978,946.27 = 403,486.10 : x
  2. Step 2: Convert to fraction form
    709,365.73/978,946.27 = 403,486.10/x
  3. Step 3: Cross multiply
    709,365.73x = 978,946.27 × 403,486.10
  4. Step 4: Simplify right side
    709,365.73x = 394,991,212,591.85
  5. Step 5: Solve for x
    x = 394,991,212,591.85/709,365.73
  6. Step 6: Final answer
    x = 556,823.08

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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.