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Finding the Fourth Proportional to 657,180.39, 906,936.51 and 370,700.40

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Solution

The fourth proportional to 657,180.39, 906,936.51 and 370,700.40 is: 511,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,180.39 : 906,936.51 = 370,700.40 : x
  2. Step 2: Convert to fraction form
    657,180.39/906,936.51 = 370,700.40/x
  3. Step 3: Cross multiply
    657,180.39x = 906,936.51 × 370,700.40
  4. Step 4: Simplify right side
    657,180.39x = 336,201,727,031.60
  5. Step 5: Solve for x
    x = 336,201,727,031.60/657,180.39
  6. Step 6: Final answer
    x = 511,582.10

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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.