Home / 963,632.49-1,329,812.20-555,728.43

Finding the Fourth Proportional to 963,632.49, 1,329,812.20 and 555,728.43

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Solution

The fourth proportional to 963,632.49, 1,329,812.20 and 555,728.43 is: 766,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,632.49 : 1,329,812.20 = 555,728.43 : x
  2. Step 2: Convert to fraction form
    963,632.49/1,329,812.20 = 555,728.43/x
  3. Step 3: Cross multiply
    963,632.49x = 1,329,812.20 × 555,728.43
  4. Step 4: Simplify right side
    963,632.49x = 739,014,446,100.85
  5. Step 5: Solve for x
    x = 739,014,446,100.85/963,632.49
  6. Step 6: Final answer
    x = 766,904.87

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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.