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Finding the Fourth Proportional to 573,130.85, 790,927.74 and 315,035.98

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Solution

The fourth proportional to 573,130.85, 790,927.74 and 315,035.98 is: 434,753.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,130.85 : 790,927.74 = 315,035.98 : x
  2. Step 2: Convert to fraction form
    573,130.85/790,927.74 = 315,035.98/x
  3. Step 3: Cross multiply
    573,130.85x = 790,927.74 × 315,035.98
  4. Step 4: Simplify right side
    573,130.85x = 249,170,691,725.45
  5. Step 5: Solve for x
    x = 249,170,691,725.45/573,130.85
  6. Step 6: Final answer
    x = 434,753.59

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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.