Home / 862,666.58-1,190,568.46-518,613.89

Finding the Fourth Proportional to 862,666.58, 1,190,568.46 and 518,613.89

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Solution

The fourth proportional to 862,666.58, 1,190,568.46 and 518,613.89 is: 715,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,666.58 : 1,190,568.46 = 518,613.89 : x
  2. Step 2: Convert to fraction form
    862,666.58/1,190,568.46 = 518,613.89/x
  3. Step 3: Cross multiply
    862,666.58x = 1,190,568.46 × 518,613.89
  4. Step 4: Simplify right side
    862,666.58x = 617,445,334,399.07
  5. Step 5: Solve for x
    x = 617,445,334,399.07/862,666.58
  6. Step 6: Final answer
    x = 715,740.42

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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.