Home / 643,581.46-965,528.27-194,275.49

Finding the Fourth Proportional to 643,581.46, 965,528.27 and 194,275.49

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Solution

The fourth proportional to 643,581.46, 965,528.27 and 194,275.49 is: 291,460.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,581.46 : 965,528.27 = 194,275.49 : x
  2. Step 2: Convert to fraction form
    643,581.46/965,528.27 = 194,275.49/x
  3. Step 3: Cross multiply
    643,581.46x = 965,528.27 × 194,275.49
  4. Step 4: Simplify right side
    643,581.46x = 187,578,477,763.10
  5. Step 5: Solve for x
    x = 187,578,477,763.10/643,581.46
  6. Step 6: Final answer
    x = 291,460.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.