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Finding the Fourth Proportional to 308,643.69, 463,009.90 and 95,428.23

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Solution

The fourth proportional to 308,643.69, 463,009.90 and 95,428.23 is: 143,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,643.69 : 463,009.90 = 95,428.23 : x
  2. Step 2: Convert to fraction form
    308,643.69/463,009.90 = 95,428.23/x
  3. Step 3: Cross multiply
    308,643.69x = 463,009.90 × 95,428.23
  4. Step 4: Simplify right side
    308,643.69x = 44,184,217,071.80
  5. Step 5: Solve for x
    x = 44,184,217,071.80/308,643.69
  6. Step 6: Final answer
    x = 143,156.07

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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.