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Finding the Fourth Proportional to 558,521.19, 770,697.56 and 313,449.74

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Solution

The fourth proportional to 558,521.19, 770,697.56 and 313,449.74 is: 432,526.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,521.19 : 770,697.56 = 313,449.74 : x
  2. Step 2: Convert to fraction form
    558,521.19/770,697.56 = 313,449.74/x
  3. Step 3: Cross multiply
    558,521.19x = 770,697.56 × 313,449.74
  4. Step 4: Simplify right side
    558,521.19x = 241,574,944,379.90
  5. Step 5: Solve for x
    x = 241,574,944,379.90/558,521.19
  6. Step 6: Final answer
    x = 432,526.01

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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.