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Finding the Fourth Proportional to 342,995.85, 514,286.00 and 153,420.89

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Solution

The fourth proportional to 342,995.85, 514,286.00 and 153,420.89 is: 230,038.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,995.85 : 514,286.00 = 153,420.89 : x
  2. Step 2: Convert to fraction form
    342,995.85/514,286.00 = 153,420.89/x
  3. Step 3: Cross multiply
    342,995.85x = 514,286.00 × 153,420.89
  4. Step 4: Simplify right side
    342,995.85x = 78,902,212,496.01
  5. Step 5: Solve for x
    x = 78,902,212,496.01/342,995.85
  6. Step 6: Final answer
    x = 230,038.39

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1.5x scale

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.