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Finding the Fourth Proportional to 907,662.64, 1,362,219.72 and 409,065.52

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Solution

The fourth proportional to 907,662.64, 1,362,219.72 and 409,065.52 is: 613,925.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,662.64 : 1,362,219.72 = 409,065.52 : x
  2. Step 2: Convert to fraction form
    907,662.64/1,362,219.72 = 409,065.52/x
  3. Step 3: Cross multiply
    907,662.64x = 1,362,219.72 × 409,065.52
  4. Step 4: Simplify right side
    907,662.64x = 557,237,118,116.05
  5. Step 5: Solve for x
    x = 557,237,118,116.05/907,662.64
  6. Step 6: Final answer
    x = 613,925.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.