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Finding the Fourth Proportional to 806,693.70, 1,210,040.55 and 806,693.70

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Solution

The fourth proportional to 806,693.70, 1,210,040.55 and 806,693.70 is: 1,210,040.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,693.70 : 1,210,040.55 = 806,693.70 : x
  2. Step 2: Convert to fraction form
    806,693.70/1,210,040.55 = 806,693.70/x
  3. Step 3: Cross multiply
    806,693.70x = 1,210,040.55 × 806,693.70
  4. Step 4: Simplify right side
    806,693.70x = 976,132,088,429.54
  5. Step 5: Solve for x
    x = 976,132,088,429.54/806,693.70
  6. Step 6: Final answer
    x = 1,210,040.55

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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.