Home / 1,210,310.40-1,670,162.24-666,342.91

Finding the Fourth Proportional to 1,210,310.40, 1,670,162.24 and 666,342.91

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Solution

The fourth proportional to 1,210,310.40, 1,670,162.24 and 666,342.91 is: 919,516.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,310.40 : 1,670,162.24 = 666,342.91 : x
  2. Step 2: Convert to fraction form
    1,210,310.40/1,670,162.24 = 666,342.91/x
  3. Step 3: Cross multiply
    1,210,310.40x = 1,670,162.24 × 666,342.91
  4. Step 4: Simplify right side
    1,210,310.40x = 1,112,900,757,784.44
  5. Step 5: Solve for x
    x = 1,112,900,757,784.44/1,210,310.40
  6. Step 6: Final answer
    x = 919,516.81

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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.