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Finding the Fourth Proportional to 922,656.96, 1,384,066.08 and 257,810.88

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Solution

The fourth proportional to 922,656.96, 1,384,066.08 and 257,810.88 is: 386,738.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,656.96 : 1,384,066.08 = 257,810.88 : x
  2. Step 2: Convert to fraction form
    922,656.96/1,384,066.08 = 257,810.88/x
  3. Step 3: Cross multiply
    922,656.96x = 1,384,066.08 × 257,810.88
  4. Step 4: Simplify right side
    922,656.96x = 356,827,294,062.95
  5. Step 5: Solve for x
    x = 356,827,294,062.95/922,656.96
  6. Step 6: Final answer
    x = 386,738.85

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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.