Home / 841,755.59-1,161,278.82-621,520.70

Finding the Fourth Proportional to 841,755.59, 1,161,278.82 and 621,520.70

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Solution

The fourth proportional to 841,755.59, 1,161,278.82 and 621,520.70 is: 857,444.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,755.59 : 1,161,278.82 = 621,520.70 : x
  2. Step 2: Convert to fraction form
    841,755.59/1,161,278.82 = 621,520.70/x
  3. Step 3: Cross multiply
    841,755.59x = 1,161,278.82 × 621,520.70
  4. Step 4: Simplify right side
    841,755.59x = 721,758,819,295.18
  5. Step 5: Solve for x
    x = 721,758,819,295.18/841,755.59
  6. Step 6: Final answer
    x = 857,444.64

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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.