Home / 689,333.09-950,891.40-413,619.62

Finding the Fourth Proportional to 689,333.09, 950,891.40 and 413,619.62

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Solution

The fourth proportional to 689,333.09, 950,891.40 and 413,619.62 is: 570,562.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,333.09 : 950,891.40 = 413,619.62 : x
  2. Step 2: Convert to fraction form
    689,333.09/950,891.40 = 413,619.62/x
  3. Step 3: Cross multiply
    689,333.09x = 950,891.40 × 413,619.62
  4. Step 4: Simplify right side
    689,333.09x = 393,307,334,774.81
  5. Step 5: Solve for x
    x = 393,307,334,774.81/689,333.09
  6. Step 6: Final answer
    x = 570,562.10

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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.