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Finding the Fourth Proportional to 583,710.12, 805,509.23 and 329,061.51

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Solution

The fourth proportional to 583,710.12, 805,509.23 and 329,061.51 is: 454,098.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,710.12 : 805,509.23 = 329,061.51 : x
  2. Step 2: Convert to fraction form
    583,710.12/805,509.23 = 329,061.51/x
  3. Step 3: Cross multiply
    583,710.12x = 805,509.23 × 329,061.51
  4. Step 4: Simplify right side
    583,710.12x = 265,062,081,897.43
  5. Step 5: Solve for x
    x = 265,062,081,897.43/583,710.12
  6. Step 6: Final answer
    x = 454,098.83

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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.