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Finding the Fourth Proportional to 661,548.83, 913,115.84 and 432,101.25

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Solution

The fourth proportional to 661,548.83, 913,115.84 and 432,101.25 is: 596,416.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,548.83 : 913,115.84 = 432,101.25 : x
  2. Step 2: Convert to fraction form
    661,548.83/913,115.84 = 432,101.25/x
  3. Step 3: Cross multiply
    661,548.83x = 913,115.84 × 432,101.25
  4. Step 4: Simplify right side
    661,548.83x = 394,558,495,858.80
  5. Step 5: Solve for x
    x = 394,558,495,858.80/661,548.83
  6. Step 6: Final answer
    x = 596,416.29

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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.