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Finding the Fourth Proportional to 573,779.34, 791,784.20 and 315,614.62

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Solution

The fourth proportional to 573,779.34, 791,784.20 and 315,614.62 is: 435,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,779.34 : 791,784.20 = 315,614.62 : x
  2. Step 2: Convert to fraction form
    573,779.34/791,784.20 = 315,614.62/x
  3. Step 3: Cross multiply
    573,779.34x = 791,784.20 × 315,614.62
  4. Step 4: Simplify right side
    573,779.34x = 249,898,669,405.00
  5. Step 5: Solve for x
    x = 249,898,669,405.00/573,779.34
  6. Step 6: Final answer
    x = 435,530.96

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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.