Home / 940,864.53-1,298,389.66-511,140.90

Finding the Fourth Proportional to 940,864.53, 1,298,389.66 and 511,140.90

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Solution

The fourth proportional to 940,864.53, 1,298,389.66 and 511,140.90 is: 705,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,864.53 : 1,298,389.66 = 511,140.90 : x
  2. Step 2: Convert to fraction form
    940,864.53/1,298,389.66 = 511,140.90/x
  3. Step 3: Cross multiply
    940,864.53x = 1,298,389.66 × 511,140.90
  4. Step 4: Simplify right side
    940,864.53x = 663,660,059,363.09
  5. Step 5: Solve for x
    x = 663,660,059,363.09/940,864.53
  6. Step 6: Final answer
    x = 705,372.60

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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.