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Finding the Fourth Proportional to 607,897.40, 911,846.10 and 164,665.40

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Solution

The fourth proportional to 607,897.40, 911,846.10 and 164,665.40 is: 246,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,897.40 : 911,846.10 = 164,665.40 : x
  2. Step 2: Convert to fraction form
    607,897.40/911,846.10 = 164,665.40/x
  3. Step 3: Cross multiply
    607,897.40x = 911,846.10 × 164,665.40
  4. Step 4: Simplify right side
    607,897.40x = 150,149,502,794.94
  5. Step 5: Solve for x
    x = 150,149,502,794.94/607,897.40
  6. Step 6: Final answer
    x = 246,998.10

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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.