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Finding the Fourth Proportional to 652,616.93, 900,776.90 and 445,969.01

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Solution

The fourth proportional to 652,616.93, 900,776.90 and 445,969.01 is: 615,550.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,616.93 : 900,776.90 = 445,969.01 : x
  2. Step 2: Convert to fraction form
    652,616.93/900,776.90 = 445,969.01/x
  3. Step 3: Cross multiply
    652,616.93x = 900,776.90 × 445,969.01
  4. Step 4: Simplify right side
    652,616.93x = 401,718,582,323.87
  5. Step 5: Solve for x
    x = 401,718,582,323.87/652,616.93
  6. Step 6: Final answer
    x = 615,550.35

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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.