Home / 621,113.24-857,402.34-427,792.16

Finding the Fourth Proportional to 621,113.24, 857,402.34 and 427,792.16

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Solution

The fourth proportional to 621,113.24, 857,402.34 and 427,792.16 is: 590,536.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,113.24 : 857,402.34 = 427,792.16 : x
  2. Step 2: Convert to fraction form
    621,113.24/857,402.34 = 427,792.16/x
  3. Step 3: Cross multiply
    621,113.24x = 857,402.34 × 427,792.16
  4. Step 4: Simplify right side
    621,113.24x = 366,789,999,017.65
  5. Step 5: Solve for x
    x = 366,789,999,017.65/621,113.24
  6. Step 6: Final answer
    x = 590,536.44

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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.