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Finding the Fourth Proportional to 306,674.22, 423,210.36 and 170,705.28

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Solution

The fourth proportional to 306,674.22, 423,210.36 and 170,705.28 is: 235,573.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,674.22 : 423,210.36 = 170,705.28 : x
  2. Step 2: Convert to fraction form
    306,674.22/423,210.36 = 170,705.28/x
  3. Step 3: Cross multiply
    306,674.22x = 423,210.36 × 170,705.28
  4. Step 4: Simplify right side
    306,674.22x = 72,244,243,002.70
  5. Step 5: Solve for x
    x = 72,244,243,002.70/306,674.22
  6. Step 6: Final answer
    x = 235,573.25

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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.