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Finding the Fourth Proportional to 448,048.80, 672,073.20 and 369,316.80

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Solution

The fourth proportional to 448,048.80, 672,073.20 and 369,316.80 is: 553,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,048.80 : 672,073.20 = 369,316.80 : x
  2. Step 2: Convert to fraction form
    448,048.80/672,073.20 = 369,316.80/x
  3. Step 3: Cross multiply
    448,048.80x = 672,073.20 × 369,316.80
  4. Step 4: Simplify right side
    448,048.80x = 248,207,923,589.76
  5. Step 5: Solve for x
    x = 248,207,923,589.76/448,048.80
  6. Step 6: Final answer
    x = 553,975.20

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Similar ratio
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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.