Home / 621,178.79-931,789.04-171,862.07

Finding the Fourth Proportional to 621,178.79, 931,789.04 and 171,862.07

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Solution

The fourth proportional to 621,178.79, 931,789.04 and 171,862.07 is: 257,798.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,178.79 : 931,789.04 = 171,862.07 : x
  2. Step 2: Convert to fraction form
    621,178.79/931,789.04 = 171,862.07/x
  3. Step 3: Cross multiply
    621,178.79x = 931,789.04 × 171,862.07
  4. Step 4: Simplify right side
    621,178.79x = 160,139,187,699.46
  5. Step 5: Solve for x
    x = 160,139,187,699.46/621,178.79
  6. Step 6: Final answer
    x = 257,798.87

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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.