Home / 642,398.80-886,943.37-574,197.22

Finding the Fourth Proportional to 642,398.80, 886,943.37 and 574,197.22

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Solution

The fourth proportional to 642,398.80, 886,943.37 and 574,197.22 is: 792,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,398.80 : 886,943.37 = 574,197.22 : x
  2. Step 2: Convert to fraction form
    642,398.80/886,943.37 = 574,197.22/x
  3. Step 3: Cross multiply
    642,398.80x = 886,943.37 × 574,197.22
  4. Step 4: Simplify right side
    642,398.80x = 509,280,417,351.43
  5. Step 5: Solve for x
    x = 509,280,417,351.43/642,398.80
  6. Step 6: Final answer
    x = 792,779.22

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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.