Home / 822,608.56-1,135,328.16-500,419.72

Finding the Fourth Proportional to 822,608.56, 1,135,328.16 and 500,419.72

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Solution

The fourth proportional to 822,608.56, 1,135,328.16 and 500,419.72 is: 690,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,608.56 : 1,135,328.16 = 500,419.72 : x
  2. Step 2: Convert to fraction form
    822,608.56/1,135,328.16 = 500,419.72/x
  3. Step 3: Cross multiply
    822,608.56x = 1,135,328.16 × 500,419.72
  4. Step 4: Simplify right side
    822,608.56x = 568,140,599,935.32
  5. Step 5: Solve for x
    x = 568,140,599,935.32/822,608.56
  6. Step 6: Final answer
    x = 690,657.29

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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.