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Finding the Fourth Proportional to 573,619.76, 791,614.44 and 315,507.58

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Solution

The fourth proportional to 573,619.76, 791,614.44 and 315,507.58 is: 435,411.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,619.76 : 791,614.44 = 315,507.58 : x
  2. Step 2: Convert to fraction form
    573,619.76/791,614.44 = 315,507.58/x
  3. Step 3: Cross multiply
    573,619.76x = 791,614.44 × 315,507.58
  4. Step 4: Simplify right side
    573,619.76x = 249,760,356,257.46
  5. Step 5: Solve for x
    x = 249,760,356,257.46/573,619.76
  6. Step 6: Final answer
    x = 435,411.01

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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.