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Finding the Fourth Proportional to 313,259.65, 432,298.50 and 170,019.69

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Solution

The fourth proportional to 313,259.65, 432,298.50 and 170,019.69 is: 234,627.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,259.65 : 432,298.50 = 170,019.69 : x
  2. Step 2: Convert to fraction form
    313,259.65/432,298.50 = 170,019.69/x
  3. Step 3: Cross multiply
    313,259.65x = 432,298.50 × 170,019.69
  4. Step 4: Simplify right side
    313,259.65x = 73,499,257,497.84
  5. Step 5: Solve for x
    x = 73,499,257,497.84/313,259.65
  6. Step 6: Final answer
    x = 234,627.27

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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.