Home / 469,055.28-647,328.64-285,365.51

Finding the Fourth Proportional to 469,055.28, 647,328.64 and 285,365.51

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Solution

The fourth proportional to 469,055.28, 647,328.64 and 285,365.51 is: 393,824.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,055.28 : 647,328.64 = 285,365.51 : x
  2. Step 2: Convert to fraction form
    469,055.28/647,328.64 = 285,365.51/x
  3. Step 3: Cross multiply
    469,055.28x = 647,328.64 × 285,365.51
  4. Step 4: Simplify right side
    469,055.28x = 184,725,267,491.21
  5. Step 5: Solve for x
    x = 184,725,267,491.21/469,055.28
  6. Step 6: Final answer
    x = 393,824.09

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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.