Home / 571,621.57-857,432.69-145,189.38

Finding the Fourth Proportional to 571,621.57, 857,432.69 and 145,189.38

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Solution

The fourth proportional to 571,621.57, 857,432.69 and 145,189.38 is: 217,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,621.57 : 857,432.69 = 145,189.38 : x
  2. Step 2: Convert to fraction form
    571,621.57/857,432.69 = 145,189.38/x
  3. Step 3: Cross multiply
    571,621.57x = 857,432.69 × 145,189.38
  4. Step 4: Simplify right side
    571,621.57x = 124,490,118,863.66
  5. Step 5: Solve for x
    x = 124,490,118,863.66/571,621.57
  6. Step 6: Final answer
    x = 217,784.15

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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.