Home / 293,215.60-439,823.40-257,057.20

Finding the Fourth Proportional to 293,215.60, 439,823.40 and 257,057.20

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Solution

The fourth proportional to 293,215.60, 439,823.40 and 257,057.20 is: 385,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,215.60 : 439,823.40 = 257,057.20 : x
  2. Step 2: Convert to fraction form
    293,215.60/439,823.40 = 257,057.20/x
  3. Step 3: Cross multiply
    293,215.60x = 439,823.40 × 257,057.20
  4. Step 4: Simplify right side
    293,215.60x = 113,059,771,698.48
  5. Step 5: Solve for x
    x = 113,059,771,698.48/293,215.60
  6. Step 6: Final answer
    x = 385,585.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.