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Finding the Fourth Proportional to 573,554.61, 791,464.21 and 315,449.46

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Solution

The fourth proportional to 573,554.61, 791,464.21 and 315,449.46 is: 435,297.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,554.61 : 791,464.21 = 315,449.46 : x
  2. Step 2: Convert to fraction form
    573,554.61/791,464.21 = 315,449.46/x
  3. Step 3: Cross multiply
    573,554.61x = 791,464.21 × 315,449.46
  4. Step 4: Simplify right side
    573,554.61x = 249,666,957,653.83
  5. Step 5: Solve for x
    x = 249,666,957,653.83/573,554.61
  6. Step 6: Final answer
    x = 435,297.62

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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.