Home / 870,447.55-1,200,909.68-568,816.51

Finding the Fourth Proportional to 870,447.55, 1,200,909.68 and 568,816.51

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Solution

The fourth proportional to 870,447.55, 1,200,909.68 and 568,816.51 is: 784,765.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,447.55 : 1,200,909.68 = 568,816.51 : x
  2. Step 2: Convert to fraction form
    870,447.55/1,200,909.68 = 568,816.51/x
  3. Step 3: Cross multiply
    870,447.55x = 1,200,909.68 × 568,816.51
  4. Step 4: Simplify right side
    870,447.55x = 683,097,244,154.19
  5. Step 5: Solve for x
    x = 683,097,244,154.19/870,447.55
  6. Step 6: Final answer
    x = 784,765.55

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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.