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Finding the Fourth Proportional to 657,097.52, 985,646.27 and 257,926.28

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Solution

The fourth proportional to 657,097.52, 985,646.27 and 257,926.28 is: 386,889.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,097.52 : 985,646.27 = 257,926.28 : x
  2. Step 2: Convert to fraction form
    657,097.52/985,646.27 = 257,926.28/x
  3. Step 3: Cross multiply
    657,097.52x = 985,646.27 × 257,926.28
  4. Step 4: Simplify right side
    657,097.52x = 254,224,071,533.56
  5. Step 5: Solve for x
    x = 254,224,071,533.56/657,097.52
  6. Step 6: Final answer
    x = 386,889.41

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.