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Finding the Fourth Proportional to 673,616.52, 928,011.74 and 469,297.87

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Solution

The fourth proportional to 673,616.52, 928,011.74 and 469,297.87 is: 646,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,616.52 : 928,011.74 = 469,297.87 : x
  2. Step 2: Convert to fraction form
    673,616.52/928,011.74 = 469,297.87/x
  3. Step 3: Cross multiply
    673,616.52x = 928,011.74 × 469,297.87
  4. Step 4: Simplify right side
    673,616.52x = 435,513,928,250.48
  5. Step 5: Solve for x
    x = 435,513,928,250.48/673,616.52
  6. Step 6: Final answer
    x = 646,530.95

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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.