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Finding the Fourth Proportional to 2,087,816.40, 2,916,644.40 and 2,087,816.40

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Solution

The fourth proportional to 2,087,816.40, 2,916,644.40 and 2,087,816.40 is: 2,916,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,816.40 : 2,916,644.40 = 2,087,816.40 : x
  2. Step 2: Convert to fraction form
    2,087,816.40/2,916,644.40 = 2,087,816.40/x
  3. Step 3: Cross multiply
    2,087,816.40x = 2,916,644.40 × 2,087,816.40
  4. Step 4: Simplify right side
    2,087,816.40x = 6,089,418,011,288.16
  5. Step 5: Solve for x
    x = 6,089,418,011,288.16/2,087,816.40
  6. Step 6: Final answer
    x = 2,916,644.40

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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.