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Finding the Fourth Proportional to 558,291.06, 770,439.51 and 303,646.50

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Solution

The fourth proportional to 558,291.06, 770,439.51 and 303,646.50 is: 419,031.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,291.06 : 770,439.51 = 303,646.50 : x
  2. Step 2: Convert to fraction form
    558,291.06/770,439.51 = 303,646.50/x
  3. Step 3: Cross multiply
    558,291.06x = 770,439.51 × 303,646.50
  4. Step 4: Simplify right side
    558,291.06x = 233,941,260,673.22
  5. Step 5: Solve for x
    x = 233,941,260,673.22/558,291.06
  6. Step 6: Final answer
    x = 419,031.00

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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.