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Finding the Fourth Proportional to 453,114.90, 679,089.15 and 347,409.90

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Solution

The fourth proportional to 453,114.90, 679,089.15 and 347,409.90 is: 520,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,114.90 : 679,089.15 = 347,409.90 : x
  2. Step 2: Convert to fraction form
    453,114.90/679,089.15 = 347,409.90/x
  3. Step 3: Cross multiply
    453,114.90x = 679,089.15 × 347,409.90
  4. Step 4: Simplify right side
    453,114.90x = 235,922,293,692.59
  5. Step 5: Solve for x
    x = 235,922,293,692.59/453,114.90
  6. Step 6: Final answer
    x = 520,667.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.