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Finding the Fourth Proportional to 607,122.10, 851,215.10 and 607,122.10

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Solution

The fourth proportional to 607,122.10, 851,215.10 and 607,122.10 is: 851,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,122.10 : 851,215.10 = 607,122.10 : x
  2. Step 2: Convert to fraction form
    607,122.10/851,215.10 = 607,122.10/x
  3. Step 3: Cross multiply
    607,122.10x = 851,215.10 × 607,122.10
  4. Step 4: Simplify right side
    607,122.10x = 516,791,499,063.71
  5. Step 5: Solve for x
    x = 516,791,499,063.71/607,122.10
  6. Step 6: Final answer
    x = 851,215.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.