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Finding the Fourth Proportional to 573,409.33, 791,325.18 and 315,305.92

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Solution

The fourth proportional to 573,409.33, 791,325.18 and 315,305.92 is: 435,133.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,409.33 : 791,325.18 = 315,305.92 : x
  2. Step 2: Convert to fraction form
    573,409.33/791,325.18 = 315,305.92/x
  3. Step 3: Cross multiply
    573,409.33x = 791,325.18 × 315,305.92
  4. Step 4: Simplify right side
    573,409.33x = 249,509,513,899.07
  5. Step 5: Solve for x
    x = 249,509,513,899.07/573,409.33
  6. Step 6: Final answer
    x = 435,133.33

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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.