Home / 623,857.08-859,911.66-487,650.36

Finding the Fourth Proportional to 623,857.08, 859,911.66 and 487,650.36

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Solution

The fourth proportional to 623,857.08, 859,911.66 and 487,650.36 is: 672,167.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,857.08 : 859,911.66 = 487,650.36 : x
  2. Step 2: Convert to fraction form
    623,857.08/859,911.66 = 487,650.36/x
  3. Step 3: Cross multiply
    623,857.08x = 859,911.66 × 487,650.36
  4. Step 4: Simplify right side
    623,857.08x = 419,336,230,567.20
  5. Step 5: Solve for x
    x = 419,336,230,567.20/623,857.08
  6. Step 6: Final answer
    x = 672,167.14

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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.