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Finding the Fourth Proportional to 584,019.36, 805,216.50 and 487,362.48

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Solution

The fourth proportional to 584,019.36, 805,216.50 and 487,362.48 is: 671,950.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,019.36 : 805,216.50 = 487,362.48 : x
  2. Step 2: Convert to fraction form
    584,019.36/805,216.50 = 487,362.48/x
  3. Step 3: Cross multiply
    584,019.36x = 805,216.50 × 487,362.48
  4. Step 4: Simplify right side
    584,019.36x = 392,432,310,376.92
  5. Step 5: Solve for x
    x = 392,432,310,376.92/584,019.36
  6. Step 6: Final answer
    x = 671,950.86

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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.