Home / 1,278,557.30-1,916,507.55-520,073.30

Finding the Fourth Proportional to 1,278,557.30, 1,916,507.55 and 520,073.30

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Solution

The fourth proportional to 1,278,557.30, 1,916,507.55 and 520,073.30 is: 779,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,557.30 : 1,916,507.55 = 520,073.30 : x
  2. Step 2: Convert to fraction form
    1,278,557.30/1,916,507.55 = 520,073.30/x
  3. Step 3: Cross multiply
    1,278,557.30x = 1,916,507.55 × 520,073.30
  4. Step 4: Simplify right side
    1,278,557.30x = 996,724,406,003.42
  5. Step 5: Solve for x
    x = 996,724,406,003.42/1,278,557.30
  6. Step 6: Final answer
    x = 779,569.60

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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.