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Finding the Fourth Proportional to 697,999.06, 963,235.22 and 392,080.15

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Solution

The fourth proportional to 697,999.06, 963,235.22 and 392,080.15 is: 541,068.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,999.06 : 963,235.22 = 392,080.15 : x
  2. Step 2: Convert to fraction form
    697,999.06/963,235.22 = 392,080.15/x
  3. Step 3: Cross multiply
    697,999.06x = 963,235.22 × 392,080.15
  4. Step 4: Simplify right side
    697,999.06x = 377,665,409,542.88
  5. Step 5: Solve for x
    x = 377,665,409,542.88/697,999.06
  6. Step 6: Final answer
    x = 541,068.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.