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Finding the Fourth Proportional to 340,598.22, 470,040.15 and 189,695.22

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Solution

The fourth proportional to 340,598.22, 470,040.15 and 189,695.22 is: 261,787.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,598.22 : 470,040.15 = 189,695.22 : x
  2. Step 2: Convert to fraction form
    340,598.22/470,040.15 = 189,695.22/x
  3. Step 3: Cross multiply
    340,598.22x = 470,040.15 × 189,695.22
  4. Step 4: Simplify right side
    340,598.22x = 89,164,369,663.08
  5. Step 5: Solve for x
    x = 89,164,369,663.08/340,598.22
  6. Step 6: Final answer
    x = 261,787.54

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1.5x scale

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.