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Finding the Fourth Proportional to 302,621, 417,476.76 and 195,225.64

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Solution

The fourth proportional to 302,621, 417,476.76 and 195,225.64 is: 269,320.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,621 : 417,476.76 = 195,225.64 : x
  2. Step 2: Convert to fraction form
    302,621/417,476.76 = 195,225.64/x
  3. Step 3: Cross multiply
    302,621x = 417,476.76 × 195,225.64
  4. Step 4: Simplify right side
    302,621x = 81,502,167,656.13
  5. Step 5: Solve for x
    x = 81,502,167,656.13/302,621
  6. Step 6: Final answer
    x = 269,320.93

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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.