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Finding the Fourth Proportional to 573,357.10, 791,164.04 and 315,191.48

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Solution

The fourth proportional to 573,357.10, 791,164.04 and 315,191.48 is: 434,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,357.10 : 791,164.04 = 315,191.48 : x
  2. Step 2: Convert to fraction form
    573,357.10/791,164.04 = 315,191.48/x
  3. Step 3: Cross multiply
    573,357.10x = 791,164.04 × 315,191.48
  4. Step 4: Simplify right side
    573,357.10x = 249,368,164,690.38
  5. Step 5: Solve for x
    x = 249,368,164,690.38/573,357.10
  6. Step 6: Final answer
    x = 434,926.44

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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.