Home / 1,278,377.67-1,764,109.62-705,410.40

Finding the Fourth Proportional to 1,278,377.67, 1,764,109.62 and 705,410.40

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Solution

The fourth proportional to 1,278,377.67, 1,764,109.62 and 705,410.40 is: 973,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,377.67 : 1,764,109.62 = 705,410.40 : x
  2. Step 2: Convert to fraction form
    1,278,377.67/1,764,109.62 = 705,410.40/x
  3. Step 3: Cross multiply
    1,278,377.67x = 1,764,109.62 × 705,410.40
  4. Step 4: Simplify right side
    1,278,377.67x = 1,244,421,272,688.05
  5. Step 5: Solve for x
    x = 1,244,421,272,688.05/1,278,377.67
  6. Step 6: Final answer
    x = 973,437.90

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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.