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Finding the Fourth Proportional to 583,391.71, 805,145.62 and 368,521.39

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Solution

The fourth proportional to 583,391.71, 805,145.62 and 368,521.39 is: 508,600.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,391.71 : 805,145.62 = 368,521.39 : x
  2. Step 2: Convert to fraction form
    583,391.71/805,145.62 = 368,521.39/x
  3. Step 3: Cross multiply
    583,391.71x = 805,145.62 × 368,521.39
  4. Step 4: Simplify right side
    583,391.71x = 296,713,379,009.08
  5. Step 5: Solve for x
    x = 296,713,379,009.08/583,391.71
  6. Step 6: Final answer
    x = 508,600.61

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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.