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Finding the Fourth Proportional to 1,222,360, 1,686,677.04 and 678,499.92

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Solution

The fourth proportional to 1,222,360, 1,686,677.04 and 678,499.92 is: 936,230.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,360 : 1,686,677.04 = 678,499.92 : x
  2. Step 2: Convert to fraction form
    1,222,360/1,686,677.04 = 678,499.92/x
  3. Step 3: Cross multiply
    1,222,360x = 1,686,677.04 × 678,499.92
  4. Step 4: Simplify right side
    1,222,360x = 1,144,410,236,705.84
  5. Step 5: Solve for x
    x = 1,144,410,236,705.84/1,222,360
  6. Step 6: Final answer
    x = 936,230.11

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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.