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Finding the Fourth Proportional to 313,280.96, 432,328.22 and 170,041.07

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Solution

The fourth proportional to 313,280.96, 432,328.22 and 170,041.07 is: 234,656.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,280.96 : 432,328.22 = 170,041.07 : x
  2. Step 2: Convert to fraction form
    313,280.96/432,328.22 = 170,041.07/x
  3. Step 3: Cross multiply
    313,280.96x = 432,328.22 × 170,041.07
  4. Step 4: Simplify right side
    313,280.96x = 73,513,553,120.00
  5. Step 5: Solve for x
    x = 73,513,553,120.00/313,280.96
  6. Step 6: Final answer
    x = 234,656.95

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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.