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Finding the Fourth Proportional to 350,645.20, 525,967.80 and 323,611.60

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Solution

The fourth proportional to 350,645.20, 525,967.80 and 323,611.60 is: 485,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,645.20 : 525,967.80 = 323,611.60 : x
  2. Step 2: Convert to fraction form
    350,645.20/525,967.80 = 323,611.60/x
  3. Step 3: Cross multiply
    350,645.20x = 525,967.80 × 323,611.60
  4. Step 4: Simplify right side
    350,645.20x = 170,209,281,306.48
  5. Step 5: Solve for x
    x = 170,209,281,306.48/350,645.20
  6. Step 6: Final answer
    x = 485,417.40

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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.