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Finding the Fourth Proportional to 657,074.64, 906,761.16 and 366,683.10

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Solution

The fourth proportional to 657,074.64, 906,761.16 and 366,683.10 is: 506,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,074.64 : 906,761.16 = 366,683.10 : x
  2. Step 2: Convert to fraction form
    657,074.64/906,761.16 = 366,683.10/x
  3. Step 3: Cross multiply
    657,074.64x = 906,761.16 × 366,683.10
  4. Step 4: Simplify right side
    657,074.64x = 332,493,993,108.40
  5. Step 5: Solve for x
    x = 332,493,993,108.40/657,074.64
  6. Step 6: Final answer
    x = 506,021.65

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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.