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Finding the Fourth Proportional to 677,930.83, 935,602.65 and 372,066.33

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Solution

The fourth proportional to 677,930.83, 935,602.65 and 372,066.33 is: 513,483.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,930.83 : 935,602.65 = 372,066.33 : x
  2. Step 2: Convert to fraction form
    677,930.83/935,602.65 = 372,066.33/x
  3. Step 3: Cross multiply
    677,930.83x = 935,602.65 × 372,066.33
  4. Step 4: Simplify right side
    677,930.83x = 348,106,244,323.78
  5. Step 5: Solve for x
    x = 348,106,244,323.78/677,930.83
  6. Step 6: Final answer
    x = 513,483.42

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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.