Home / 621,437.22-857,377.17-506,518.27

Finding the Fourth Proportional to 621,437.22, 857,377.17 and 506,518.27

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Solution

The fourth proportional to 621,437.22, 857,377.17 and 506,518.27 is: 698,827.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,437.22 : 857,377.17 = 506,518.27 : x
  2. Step 2: Convert to fraction form
    621,437.22/857,377.17 = 506,518.27/x
  3. Step 3: Cross multiply
    621,437.22x = 857,377.17 × 506,518.27
  4. Step 4: Simplify right side
    621,437.22x = 434,277,198,742.45
  5. Step 5: Solve for x
    x = 434,277,198,742.45/621,437.22
  6. Step 6: Final answer
    x = 698,827.15

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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.