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Finding the Fourth Proportional to 569,040.14, 785,266.18 and 310,911.57

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Solution

The fourth proportional to 569,040.14, 785,266.18 and 310,911.57 is: 429,052.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,040.14 : 785,266.18 = 310,911.57 : x
  2. Step 2: Convert to fraction form
    569,040.14/785,266.18 = 310,911.57/x
  3. Step 3: Cross multiply
    569,040.14x = 785,266.18 × 310,911.57
  4. Step 4: Simplify right side
    569,040.14x = 244,148,340,114.42
  5. Step 5: Solve for x
    x = 244,148,340,114.42/569,040.14
  6. Step 6: Final answer
    x = 429,052.93

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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.