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Finding the Fourth Proportional to 592,079.40, 889,040.70 and 343,247.40

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Solution

The fourth proportional to 592,079.40, 889,040.70 and 343,247.40 is: 515,405.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,079.40 : 889,040.70 = 343,247.40 : x
  2. Step 2: Convert to fraction form
    592,079.40/889,040.70 = 343,247.40/x
  3. Step 3: Cross multiply
    592,079.40x = 889,040.70 × 343,247.40
  4. Step 4: Simplify right side
    592,079.40x = 305,160,908,769.18
  5. Step 5: Solve for x
    x = 305,160,908,769.18/592,079.40
  6. Step 6: Final answer
    x = 515,405.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.