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Finding the Fourth Proportional to 551,298.60, 827,142.30 and 531,858.60

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Solution

The fourth proportional to 551,298.60, 827,142.30 and 531,858.60 is: 797,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,298.60 : 827,142.30 = 531,858.60 : x
  2. Step 2: Convert to fraction form
    551,298.60/827,142.30 = 531,858.60/x
  3. Step 3: Cross multiply
    551,298.60x = 827,142.30 × 531,858.60
  4. Step 4: Simplify right side
    551,298.60x = 439,922,745,678.78
  5. Step 5: Solve for x
    x = 439,922,745,678.78/551,298.60
  6. Step 6: Final answer
    x = 797,975.45

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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.