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Finding the Fourth Proportional to 573,407.58, 791,322.77 and 315,304.17

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Solution

The fourth proportional to 573,407.58, 791,322.77 and 315,304.17 is: 435,130.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,407.58 : 791,322.77 = 315,304.17 : x
  2. Step 2: Convert to fraction form
    573,407.58/791,322.77 = 315,304.17/x
  3. Step 3: Cross multiply
    573,407.58x = 791,322.77 × 315,304.17
  4. Step 4: Simplify right side
    573,407.58x = 249,507,367,620.43
  5. Step 5: Solve for x
    x = 249,507,367,620.43/573,407.58
  6. Step 6: Final answer
    x = 435,130.92

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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.