Home / 642,427.50-963,700.65-169,115.34

Finding the Fourth Proportional to 642,427.50, 963,700.65 and 169,115.34

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Solution

The fourth proportional to 642,427.50, 963,700.65 and 169,115.34 is: 253,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,427.50 : 963,700.65 = 169,115.34 : x
  2. Step 2: Convert to fraction form
    642,427.50/963,700.65 = 169,115.34/x
  3. Step 3: Cross multiply
    642,427.50x = 963,700.65 × 169,115.34
  4. Step 4: Simplify right side
    642,427.50x = 162,976,563,082.97
  5. Step 5: Solve for x
    x = 162,976,563,082.97/642,427.50
  6. Step 6: Final answer
    x = 253,688.65

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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.