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Finding the Fourth Proportional to 826,404.20, 1,239,606.30 and 826,404.20

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Solution

The fourth proportional to 826,404.20, 1,239,606.30 and 826,404.20 is: 1,239,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,404.20 : 1,239,606.30 = 826,404.20 : x
  2. Step 2: Convert to fraction form
    826,404.20/1,239,606.30 = 826,404.20/x
  3. Step 3: Cross multiply
    826,404.20x = 1,239,606.30 × 826,404.20
  4. Step 4: Simplify right side
    826,404.20x = 1,024,415,852,666.46
  5. Step 5: Solve for x
    x = 1,024,415,852,666.46/826,404.20
  6. Step 6: Final answer
    x = 1,239,606.30

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Double scale
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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.