Home / 517,765.10-714,514.38-291,410.60

Finding the Fourth Proportional to 517,765.10, 714,514.38 and 291,410.60

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Solution

The fourth proportional to 517,765.10, 714,514.38 and 291,410.60 is: 402,145.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,765.10 : 714,514.38 = 291,410.60 : x
  2. Step 2: Convert to fraction form
    517,765.10/714,514.38 = 291,410.60/x
  3. Step 3: Cross multiply
    517,765.10x = 714,514.38 × 291,410.60
  4. Step 4: Simplify right side
    517,765.10x = 208,217,064,184.43
  5. Step 5: Solve for x
    x = 208,217,064,184.43/517,765.10
  6. Step 6: Final answer
    x = 402,145.81

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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.