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Finding the Fourth Proportional to 617,477.40, 926,216.10 and 516,000.60

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Solution

The fourth proportional to 617,477.40, 926,216.10 and 516,000.60 is: 774,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,477.40 : 926,216.10 = 516,000.60 : x
  2. Step 2: Convert to fraction form
    617,477.40/926,216.10 = 516,000.60/x
  3. Step 3: Cross multiply
    617,477.40x = 926,216.10 × 516,000.60
  4. Step 4: Simplify right side
    617,477.40x = 477,928,063,329.66
  5. Step 5: Solve for x
    x = 477,928,063,329.66/617,477.40
  6. Step 6: Final answer
    x = 774,000.90

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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.