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Finding the Fourth Proportional to 922,264.64, 1,383,362.40 and 291,216.32

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Solution

The fourth proportional to 922,264.64, 1,383,362.40 and 291,216.32 is: 436,813.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,264.64 : 1,383,362.40 = 291,216.32 : x
  2. Step 2: Convert to fraction form
    922,264.64/1,383,362.40 = 291,216.32/x
  3. Step 3: Cross multiply
    922,264.64x = 1,383,362.40 × 291,216.32
  4. Step 4: Simplify right side
    922,264.64x = 402,857,707,354.37
  5. Step 5: Solve for x
    x = 402,857,707,354.37/922,264.64
  6. Step 6: Final answer
    x = 436,813.57

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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.