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Finding the Fourth Proportional to 664,417.94, 916,883.97 and 362,614.10

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Solution

The fourth proportional to 664,417.94, 916,883.97 and 362,614.10 is: 500,400.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,417.94 : 916,883.97 = 362,614.10 : x
  2. Step 2: Convert to fraction form
    664,417.94/916,883.97 = 362,614.10/x
  3. Step 3: Cross multiply
    664,417.94x = 916,883.97 × 362,614.10
  4. Step 4: Simplify right side
    664,417.94x = 332,475,055,585.98
  5. Step 5: Solve for x
    x = 332,475,055,585.98/664,417.94
  6. Step 6: Final answer
    x = 500,400.48

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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.