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Finding the Fourth Proportional to 573,699.20, 791,705.69 and 319,050.39

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Solution

The fourth proportional to 573,699.20, 791,705.69 and 319,050.39 is: 440,289.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,699.20 : 791,705.69 = 319,050.39 : x
  2. Step 2: Convert to fraction form
    573,699.20/791,705.69 = 319,050.39/x
  3. Step 3: Cross multiply
    573,699.20x = 791,705.69 × 319,050.39
  4. Step 4: Simplify right side
    573,699.20x = 252,594,007,978.08
  5. Step 5: Solve for x
    x = 252,594,007,978.08/573,699.20
  6. Step 6: Final answer
    x = 440,289.98

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1.5x scale

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.