Home / 691,025.82-953,573.65-380,914.80

Finding the Fourth Proportional to 691,025.82, 953,573.65 and 380,914.80

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Solution

The fourth proportional to 691,025.82, 953,573.65 and 380,914.80 is: 525,639.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,025.82 : 953,573.65 = 380,914.80 : x
  2. Step 2: Convert to fraction form
    691,025.82/953,573.65 = 380,914.80/x
  3. Step 3: Cross multiply
    691,025.82x = 953,573.65 × 380,914.80
  4. Step 4: Simplify right side
    691,025.82x = 363,230,316,175.02
  5. Step 5: Solve for x
    x = 363,230,316,175.02/691,025.82
  6. Step 6: Final answer
    x = 525,639.28

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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.