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Finding the Fourth Proportional to 573,368.95, 791,200.47 and 315,231.94

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Solution

The fourth proportional to 573,368.95, 791,200.47 and 315,231.94 is: 434,993.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,368.95 : 791,200.47 = 315,231.94 : x
  2. Step 2: Convert to fraction form
    573,368.95/791,200.47 = 315,231.94/x
  3. Step 3: Cross multiply
    573,368.95x = 791,200.47 × 315,231.94
  4. Step 4: Simplify right side
    573,368.95x = 249,411,659,087.01
  5. Step 5: Solve for x
    x = 249,411,659,087.01/573,368.95
  6. Step 6: Final answer
    x = 434,993.31

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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.