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Finding the Fourth Proportional to 448,873.79, 619,013.75 and 302,029.49

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Solution

The fourth proportional to 448,873.79, 619,013.75 and 302,029.49 is: 416,509.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,873.79 : 619,013.75 = 302,029.49 : x
  2. Step 2: Convert to fraction form
    448,873.79/619,013.75 = 302,029.49/x
  3. Step 3: Cross multiply
    448,873.79x = 619,013.75 × 302,029.49
  4. Step 4: Simplify right side
    448,873.79x = 186,960,407,252.87
  5. Step 5: Solve for x
    x = 186,960,407,252.87/448,873.79
  6. Step 6: Final answer
    x = 416,509.97

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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.