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Finding the Fourth Proportional to 670,069.80, 935,998.20 and 670,069.80

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Solution

The fourth proportional to 670,069.80, 935,998.20 and 670,069.80 is: 935,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,069.80 : 935,998.20 = 670,069.80 : x
  2. Step 2: Convert to fraction form
    670,069.80/935,998.20 = 670,069.80/x
  3. Step 3: Cross multiply
    670,069.80x = 935,998.20 × 670,069.80
  4. Step 4: Simplify right side
    670,069.80x = 627,184,126,674.36
  5. Step 5: Solve for x
    x = 627,184,126,674.36/670,069.80
  6. Step 6: Final answer
    x = 935,998.20

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Double scale
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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.