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Finding the Fourth Proportional to 822,000.80, 1,148,312.80 and 822,000.80

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Solution

The fourth proportional to 822,000.80, 1,148,312.80 and 822,000.80 is: 1,148,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,000.80 : 1,148,312.80 = 822,000.80 : x
  2. Step 2: Convert to fraction form
    822,000.80/1,148,312.80 = 822,000.80/x
  3. Step 3: Cross multiply
    822,000.80x = 1,148,312.80 × 822,000.80
  4. Step 4: Simplify right side
    822,000.80x = 943,914,040,250.24
  5. Step 5: Solve for x
    x = 943,914,040,250.24/822,000.80
  6. Step 6: Final answer
    x = 1,148,312.80

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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.