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Finding the Fourth Proportional to 822,347.72, 1,234,595.86 and 660,328.28

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Solution

The fourth proportional to 822,347.72, 1,234,595.86 and 660,328.28 is: 991,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,347.72 : 1,234,595.86 = 660,328.28 : x
  2. Step 2: Convert to fraction form
    822,347.72/1,234,595.86 = 660,328.28/x
  3. Step 3: Cross multiply
    822,347.72x = 1,234,595.86 × 660,328.28
  4. Step 4: Simplify right side
    822,347.72x = 815,238,560,728.92
  5. Step 5: Solve for x
    x = 815,238,560,728.92/822,347.72
  6. Step 6: Final answer
    x = 991,355.04

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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.