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Finding the Fourth Proportional to 657,186.96, 906,911.46 and 370,800.12

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Solution

The fourth proportional to 657,186.96, 906,911.46 and 370,800.12 is: 511,700.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,186.96 : 906,911.46 = 370,800.12 : x
  2. Step 2: Convert to fraction form
    657,186.96/906,911.46 = 370,800.12/x
  3. Step 3: Cross multiply
    657,186.96x = 906,911.46 × 370,800.12
  4. Step 4: Simplify right side
    657,186.96x = 336,282,878,197.38
  5. Step 5: Solve for x
    x = 336,282,878,197.38/657,186.96
  6. Step 6: Final answer
    x = 511,700.47

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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.