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Finding the Fourth Proportional to 922,862.76, 1,384,285.56 and 291,776.64

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Solution

The fourth proportional to 922,862.76, 1,384,285.56 and 291,776.64 is: 437,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,862.76 : 1,384,285.56 = 291,776.64 : x
  2. Step 2: Convert to fraction form
    922,862.76/1,384,285.56 = 291,776.64/x
  3. Step 3: Cross multiply
    922,862.76x = 1,384,285.56 × 291,776.64
  4. Step 4: Simplify right side
    922,862.76x = 403,902,189,497.32
  5. Step 5: Solve for x
    x = 403,902,189,497.32/922,862.76
  6. Step 6: Final answer
    x = 437,662.25

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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.