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Finding the Fourth Proportional to 822,846.30, 1,234,269.45 and 717,870.30

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Solution

The fourth proportional to 822,846.30, 1,234,269.45 and 717,870.30 is: 1,076,805.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,846.30 : 1,234,269.45 = 717,870.30 : x
  2. Step 2: Convert to fraction form
    822,846.30/1,234,269.45 = 717,870.30/x
  3. Step 3: Cross multiply
    822,846.30x = 1,234,269.45 × 717,870.30
  4. Step 4: Simplify right side
    822,846.30x = 886,045,380,352.34
  5. Step 5: Solve for x
    x = 886,045,380,352.34/822,846.30
  6. Step 6: Final answer
    x = 1,076,805.45

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Double scale
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Similar ratio
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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.