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Finding the Fourth Proportional to 618,431.08, 927,661.74 and 350,275.72

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Solution

The fourth proportional to 618,431.08, 927,661.74 and 350,275.72 is: 525,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,431.08 : 927,661.74 = 350,275.72 : x
  2. Step 2: Convert to fraction form
    618,431.08/927,661.74 = 350,275.72/x
  3. Step 3: Cross multiply
    618,431.08x = 927,661.74 × 350,275.72
  4. Step 4: Simplify right side
    618,431.08x = 324,937,383,894.95
  5. Step 5: Solve for x
    x = 324,937,383,894.95/618,431.08
  6. Step 6: Final answer
    x = 525,422.14

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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.