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Finding the Fourth Proportional to 823,688.80, 1,234,150.80 and 704,802.40

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Solution

The fourth proportional to 823,688.80, 1,234,150.80 and 704,802.40 is: 1,056,020.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,688.80 : 1,234,150.80 = 704,802.40 : x
  2. Step 2: Convert to fraction form
    823,688.80/1,234,150.80 = 704,802.40/x
  3. Step 3: Cross multiply
    823,688.80x = 1,234,150.80 × 704,802.40
  4. Step 4: Simplify right side
    823,688.80x = 869,832,445,801.92
  5. Step 5: Solve for x
    x = 869,832,445,801.92/823,688.80
  6. Step 6: Final answer
    x = 1,056,020.73

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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.