Home / 1,223,298.64-1,688,105.44-679,469.32

Finding the Fourth Proportional to 1,223,298.64, 1,688,105.44 and 679,469.32

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Solution

The fourth proportional to 1,223,298.64, 1,688,105.44 and 679,469.32 is: 937,641.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,298.64 : 1,688,105.44 = 679,469.32 : x
  2. Step 2: Convert to fraction form
    1,223,298.64/1,688,105.44 = 679,469.32/x
  3. Step 3: Cross multiply
    1,223,298.64x = 1,688,105.44 × 679,469.32
  4. Step 4: Simplify right side
    1,223,298.64x = 1,147,015,855,405.10
  5. Step 5: Solve for x
    x = 1,147,015,855,405.10/1,223,298.64
  6. Step 6: Final answer
    x = 937,641.73

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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.