Home / 678,543.92-1,022,581.36-611,160.40

Finding the Fourth Proportional to 678,543.92, 1,022,581.36 and 611,160.40

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Solution

The fourth proportional to 678,543.92, 1,022,581.36 and 611,160.40 is: 921,032.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,543.92 : 1,022,581.36 = 611,160.40 : x
  2. Step 2: Convert to fraction form
    678,543.92/1,022,581.36 = 611,160.40/x
  3. Step 3: Cross multiply
    678,543.92x = 1,022,581.36 × 611,160.40
  4. Step 4: Simplify right side
    678,543.92x = 624,961,233,010.14
  5. Step 5: Solve for x
    x = 624,961,233,010.14/678,543.92
  6. Step 6: Final answer
    x = 921,032.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.