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Finding the Fourth Proportional to 527,054.20, 791,368.64 and 519,181

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Solution

The fourth proportional to 527,054.20, 791,368.64 and 519,181 is: 779,547.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,054.20 : 791,368.64 = 519,181 : x
  2. Step 2: Convert to fraction form
    527,054.20/791,368.64 = 519,181/x
  3. Step 3: Cross multiply
    527,054.20x = 791,368.64 × 519,181
  4. Step 4: Simplify right side
    527,054.20x = 410,863,561,883.84
  5. Step 5: Solve for x
    x = 410,863,561,883.84/527,054.20
  6. Step 6: Final answer
    x = 779,547.08

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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.