Home / 621,981.74-858,299.28-350,060.96

Finding the Fourth Proportional to 621,981.74, 858,299.28 and 350,060.96

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Solution

The fourth proportional to 621,981.74, 858,299.28 and 350,060.96 is: 483,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,981.74 : 858,299.28 = 350,060.96 : x
  2. Step 2: Convert to fraction form
    621,981.74/858,299.28 = 350,060.96/x
  3. Step 3: Cross multiply
    621,981.74x = 858,299.28 × 350,060.96
  4. Step 4: Simplify right side
    621,981.74x = 300,457,069,924.11
  5. Step 5: Solve for x
    x = 300,457,069,924.11/621,981.74
  6. Step 6: Final answer
    x = 483,064.13

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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.