Home / 822,581.10-1,135,140.54-455,071.80

Finding the Fourth Proportional to 822,581.10, 1,135,140.54 and 455,071.80

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Solution

The fourth proportional to 822,581.10, 1,135,140.54 and 455,071.80 is: 627,987.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,581.10 : 1,135,140.54 = 455,071.80 : x
  2. Step 2: Convert to fraction form
    822,581.10/1,135,140.54 = 455,071.80/x
  3. Step 3: Cross multiply
    822,581.10x = 1,135,140.54 × 455,071.80
  4. Step 4: Simplify right side
    822,581.10x = 516,570,448,790.77
  5. Step 5: Solve for x
    x = 516,570,448,790.77/822,581.10
  6. Step 6: Final answer
    x = 627,987.26

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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.