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Finding the Fourth Proportional to 350,043.20, 525,064.80 and 231,070.40

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Solution

The fourth proportional to 350,043.20, 525,064.80 and 231,070.40 is: 346,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,043.20 : 525,064.80 = 231,070.40 : x
  2. Step 2: Convert to fraction form
    350,043.20/525,064.80 = 231,070.40/x
  3. Step 3: Cross multiply
    350,043.20x = 525,064.80 × 231,070.40
  4. Step 4: Simplify right side
    350,043.20x = 121,326,933,361.92
  5. Step 5: Solve for x
    x = 121,326,933,361.92/350,043.20
  6. Step 6: Final answer
    x = 346,605.60

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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.