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Finding the Fourth Proportional to 684,964.70, 961,050.10 and 684,964.70

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Solution

The fourth proportional to 684,964.70, 961,050.10 and 684,964.70 is: 961,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,964.70 : 961,050.10 = 684,964.70 : x
  2. Step 2: Convert to fraction form
    684,964.70/961,050.10 = 684,964.70/x
  3. Step 3: Cross multiply
    684,964.70x = 961,050.10 × 684,964.70
  4. Step 4: Simplify right side
    684,964.70x = 658,285,393,431.47
  5. Step 5: Solve for x
    x = 658,285,393,431.47/684,964.70
  6. Step 6: Final answer
    x = 961,050.10

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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.