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Finding the Fourth Proportional to 350,057.40, 525,345.30 and 231,689.40

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Solution

The fourth proportional to 350,057.40, 525,345.30 and 231,689.40 is: 347,705.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,057.40 : 525,345.30 = 231,689.40 : x
  2. Step 2: Convert to fraction form
    350,057.40/525,345.30 = 231,689.40/x
  3. Step 3: Cross multiply
    350,057.40x = 525,345.30 × 231,689.40
  4. Step 4: Simplify right side
    350,057.40x = 121,716,937,349.82
  5. Step 5: Solve for x
    x = 121,716,937,349.82/350,057.40
  6. Step 6: Final answer
    x = 347,705.65

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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.