Home / 822,582.10-1,135,141.92-455,072.80

Finding the Fourth Proportional to 822,582.10, 1,135,141.92 and 455,072.80

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Solution

The fourth proportional to 822,582.10, 1,135,141.92 and 455,072.80 is: 627,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,582.10 : 1,135,141.92 = 455,072.80 : x
  2. Step 2: Convert to fraction form
    822,582.10/1,135,141.92 = 455,072.80/x
  3. Step 3: Cross multiply
    822,582.10x = 1,135,141.92 × 455,072.80
  4. Step 4: Simplify right side
    822,582.10x = 516,572,211,931.78
  5. Step 5: Solve for x
    x = 516,572,211,931.78/822,582.10
  6. Step 6: Final answer
    x = 627,988.64

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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.