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Finding the Fourth Proportional to 592,639.01, 817,835.60 and 320,700.95

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Solution

The fourth proportional to 592,639.01, 817,835.60 and 320,700.95 is: 442,563.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,639.01 : 817,835.60 = 320,700.95 : x
  2. Step 2: Convert to fraction form
    592,639.01/817,835.60 = 320,700.95/x
  3. Step 3: Cross multiply
    592,639.01x = 817,835.60 × 320,700.95
  4. Step 4: Simplify right side
    592,639.01x = 262,280,653,863.82
  5. Step 5: Solve for x
    x = 262,280,653,863.82/592,639.01
  6. Step 6: Final answer
    x = 442,563.94

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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.