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Finding the Fourth Proportional to 533,817.14, 736,645.69 and 319,075.61

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Solution

The fourth proportional to 533,817.14, 736,645.69 and 319,075.61 is: 440,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,817.14 : 736,645.69 = 319,075.61 : x
  2. Step 2: Convert to fraction form
    533,817.14/736,645.69 = 319,075.61/x
  3. Step 3: Cross multiply
    533,817.14x = 736,645.69 × 319,075.61
  4. Step 4: Simplify right side
    533,817.14x = 235,045,669,606.24
  5. Step 5: Solve for x
    x = 235,045,669,606.24/533,817.14
  6. Step 6: Final answer
    x = 440,311.21

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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.