Home / 621,172.95-931,789.53-171,883.91

Finding the Fourth Proportional to 621,172.95, 931,789.53 and 171,883.91

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Solution

The fourth proportional to 621,172.95, 931,789.53 and 171,883.91 is: 257,834.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,172.95 : 931,789.53 = 171,883.91 : x
  2. Step 2: Convert to fraction form
    621,172.95/931,789.53 = 171,883.91/x
  3. Step 3: Cross multiply
    621,172.95x = 931,789.53 × 171,883.91
  4. Step 4: Simplify right side
    621,172.95x = 160,159,623,054.52
  5. Step 5: Solve for x
    x = 160,159,623,054.52/621,172.95
  6. Step 6: Final answer
    x = 257,834.19

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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.