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Finding the Fourth Proportional to 540,675.36, 746,066.88 and 298,925.28

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Solution

The fourth proportional to 540,675.36, 746,066.88 and 298,925.28 is: 412,480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,675.36 : 746,066.88 = 298,925.28 : x
  2. Step 2: Convert to fraction form
    540,675.36/746,066.88 = 298,925.28/x
  3. Step 3: Cross multiply
    540,675.36x = 746,066.88 × 298,925.28
  4. Step 4: Simplify right side
    540,675.36x = 223,018,251,002.73
  5. Step 5: Solve for x
    x = 223,018,251,002.73/540,675.36
  6. Step 6: Final answer
    x = 412,480.89

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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.