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Finding the Fourth Proportional to 554,229, 764,836.02 and 403,452.36

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Solution

The fourth proportional to 554,229, 764,836.02 and 403,452.36 is: 556,764.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,229 : 764,836.02 = 403,452.36 : x
  2. Step 2: Convert to fraction form
    554,229/764,836.02 = 403,452.36/x
  3. Step 3: Cross multiply
    554,229x = 764,836.02 × 403,452.36
  4. Step 4: Simplify right side
    554,229x = 308,574,897,282.01
  5. Step 5: Solve for x
    x = 308,574,897,282.01/554,229
  6. Step 6: Final answer
    x = 556,764.26

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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.