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Finding the Fourth Proportional to 583,661.80, 805,465.68 and 329,012.92

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Solution

The fourth proportional to 583,661.80, 805,465.68 and 329,012.92 is: 454,044.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,661.80 : 805,465.68 = 329,012.92 : x
  2. Step 2: Convert to fraction form
    583,661.80/805,465.68 = 329,012.92/x
  3. Step 3: Cross multiply
    583,661.80x = 805,465.68 × 329,012.92
  4. Step 4: Simplify right side
    583,661.80x = 265,008,615,336.59
  5. Step 5: Solve for x
    x = 265,008,615,336.59/583,661.80
  6. Step 6: Final answer
    x = 454,044.82

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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.