Home / 389,723.32-537,792.78-219,934.36

Finding the Fourth Proportional to 389,723.32, 537,792.78 and 219,934.36

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Solution

The fourth proportional to 389,723.32, 537,792.78 and 219,934.36 is: 303,495.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,723.32 : 537,792.78 = 219,934.36 : x
  2. Step 2: Convert to fraction form
    389,723.32/537,792.78 = 219,934.36/x
  3. Step 3: Cross multiply
    389,723.32x = 537,792.78 × 219,934.36
  4. Step 4: Simplify right side
    389,723.32x = 118,279,110,881.92
  5. Step 5: Solve for x
    x = 118,279,110,881.92/389,723.32
  6. Step 6: Final answer
    x = 303,495.08

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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.