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Finding the Fourth Proportional to 622,205.65, 858,660.40 and 350,283.86

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Solution

The fourth proportional to 622,205.65, 858,660.40 and 350,283.86 is: 483,401.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,205.65 : 858,660.40 = 350,283.86 : x
  2. Step 2: Convert to fraction form
    622,205.65/858,660.40 = 350,283.86/x
  3. Step 3: Cross multiply
    622,205.65x = 858,660.40 × 350,283.86
  4. Step 4: Simplify right side
    622,205.65x = 300,774,879,341.14
  5. Step 5: Solve for x
    x = 300,774,879,341.14/622,205.65
  6. Step 6: Final answer
    x = 483,401.08

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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.