Home / 1,209,888-1,669,645.44-673,470.72

Finding the Fourth Proportional to 1,209,888, 1,669,645.44 and 673,470.72

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Solution

The fourth proportional to 1,209,888, 1,669,645.44 and 673,470.72 is: 929,389.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,888 : 1,669,645.44 = 673,470.72 : x
  2. Step 2: Convert to fraction form
    1,209,888/1,669,645.44 = 673,470.72/x
  3. Step 3: Cross multiply
    1,209,888x = 1,669,645.44 × 673,470.72
  4. Step 4: Simplify right side
    1,209,888x = 1,124,457,316,621.52
  5. Step 5: Solve for x
    x = 1,124,457,316,621.52/1,209,888
  6. Step 6: Final answer
    x = 929,389.59

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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.