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Finding the Fourth Proportional to 308,645.63, 463,012.81 and 95,430.16

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Solution

The fourth proportional to 308,645.63, 463,012.81 and 95,430.16 is: 143,158.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,645.63 : 463,012.81 = 95,430.16 : x
  2. Step 2: Convert to fraction form
    308,645.63/463,012.81 = 95,430.16/x
  3. Step 3: Cross multiply
    308,645.63x = 463,012.81 × 95,430.16
  4. Step 4: Simplify right side
    308,645.63x = 44,185,386,540.35
  5. Step 5: Solve for x
    x = 44,185,386,540.35/308,645.63
  6. Step 6: Final answer
    x = 143,158.96

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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.