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Finding the Fourth Proportional to 573,357.77, 791,242.50 and 315,245.90

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Solution

The fourth proportional to 573,357.77, 791,242.50 and 315,245.90 is: 435,044.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,357.77 : 791,242.50 = 315,245.90 : x
  2. Step 2: Convert to fraction form
    573,357.77/791,242.50 = 315,245.90/x
  3. Step 3: Cross multiply
    573,357.77x = 791,242.50 × 315,245.90
  4. Step 4: Simplify right side
    573,357.77x = 249,435,954,030.75
  5. Step 5: Solve for x
    x = 249,435,954,030.75/573,357.77
  6. Step 6: Final answer
    x = 435,044.17

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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.