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Finding the Fourth Proportional to 503,420.40, 755,130.60 and 484,066.80

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Solution

The fourth proportional to 503,420.40, 755,130.60 and 484,066.80 is: 726,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,420.40 : 755,130.60 = 484,066.80 : x
  2. Step 2: Convert to fraction form
    503,420.40/755,130.60 = 484,066.80/x
  3. Step 3: Cross multiply
    503,420.40x = 755,130.60 × 484,066.80
  4. Step 4: Simplify right side
    503,420.40x = 365,533,653,124.08
  5. Step 5: Solve for x
    x = 365,533,653,124.08/503,420.40
  6. Step 6: Final answer
    x = 726,100.20

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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.