Home / 642,057.23-886,048.27-370,120.19

Finding the Fourth Proportional to 642,057.23, 886,048.27 and 370,120.19

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Solution

The fourth proportional to 642,057.23, 886,048.27 and 370,120.19 is: 510,771.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,057.23 : 886,048.27 = 370,120.19 : x
  2. Step 2: Convert to fraction form
    642,057.23/886,048.27 = 370,120.19/x
  3. Step 3: Cross multiply
    642,057.23x = 886,048.27 × 370,120.19
  4. Step 4: Simplify right side
    642,057.23x = 327,944,348,686.03
  5. Step 5: Solve for x
    x = 327,944,348,686.03/642,057.23
  6. Step 6: Final answer
    x = 510,771.21

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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.