Home / 813,755.07-1,122,937.02-451,157.76

Finding the Fourth Proportional to 813,755.07, 1,122,937.02 and 451,157.76

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Solution

The fourth proportional to 813,755.07, 1,122,937.02 and 451,157.76 is: 622,572.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,755.07 : 1,122,937.02 = 451,157.76 : x
  2. Step 2: Convert to fraction form
    813,755.07/1,122,937.02 = 451,157.76/x
  3. Step 3: Cross multiply
    813,755.07x = 1,122,937.02 × 451,157.76
  4. Step 4: Simplify right side
    813,755.07x = 506,621,750,564.28
  5. Step 5: Solve for x
    x = 506,621,750,564.28/813,755.07
  6. Step 6: Final answer
    x = 622,572.77

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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.