Home / 691,004.13-953,259.75-404,346.75

Finding the Fourth Proportional to 691,004.13, 953,259.75 and 404,346.75

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Solution

The fourth proportional to 691,004.13, 953,259.75 and 404,346.75 is: 557,807.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,004.13 : 953,259.75 = 404,346.75 : x
  2. Step 2: Convert to fraction form
    691,004.13/953,259.75 = 404,346.75/x
  3. Step 3: Cross multiply
    691,004.13x = 953,259.75 × 404,346.75
  4. Step 4: Simplify right side
    691,004.13x = 385,447,481,818.31
  5. Step 5: Solve for x
    x = 385,447,481,818.31/691,004.13
  6. Step 6: Final answer
    x = 557,807.78

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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.