Home / 642,525.66-963,836.28-193,210.56

Finding the Fourth Proportional to 642,525.66, 963,836.28 and 193,210.56

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Solution

The fourth proportional to 642,525.66, 963,836.28 and 193,210.56 is: 289,830.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,525.66 : 963,836.28 = 193,210.56 : x
  2. Step 2: Convert to fraction form
    642,525.66/963,836.28 = 193,210.56/x
  3. Step 3: Cross multiply
    642,525.66x = 963,836.28 × 193,210.56
  4. Step 4: Simplify right side
    642,525.66x = 186,223,347,407.12
  5. Step 5: Solve for x
    x = 186,223,347,407.12/642,525.66
  6. Step 6: Final answer
    x = 289,830.21

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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.