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Finding the Fourth Proportional to 350,147.70, 525,221.55 and 314,718.30

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Solution

The fourth proportional to 350,147.70, 525,221.55 and 314,718.30 is: 472,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,147.70 : 525,221.55 = 314,718.30 : x
  2. Step 2: Convert to fraction form
    350,147.70/525,221.55 = 314,718.30/x
  3. Step 3: Cross multiply
    350,147.70x = 525,221.55 × 314,718.30
  4. Step 4: Simplify right side
    350,147.70x = 165,296,833,339.37
  5. Step 5: Solve for x
    x = 165,296,833,339.37/350,147.70
  6. Step 6: Final answer
    x = 472,077.45

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1.5x scale

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.