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Finding the Fourth Proportional to 492,011.40, 738,017.10 and 448,465.80

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Solution

The fourth proportional to 492,011.40, 738,017.10 and 448,465.80 is: 672,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,011.40 : 738,017.10 = 448,465.80 : x
  2. Step 2: Convert to fraction form
    492,011.40/738,017.10 = 448,465.80/x
  3. Step 3: Cross multiply
    492,011.40x = 738,017.10 × 448,465.80
  4. Step 4: Simplify right side
    492,011.40x = 330,975,429,165.18
  5. Step 5: Solve for x
    x = 330,975,429,165.18/492,011.40
  6. Step 6: Final answer
    x = 672,698.70

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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.