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Finding the Fourth Proportional to 483,114.02, 721,417.71 and 394,543.22

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Solution

The fourth proportional to 483,114.02, 721,417.71 and 394,543.22 is: 589,157.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,114.02 : 721,417.71 = 394,543.22 : x
  2. Step 2: Convert to fraction form
    483,114.02/721,417.71 = 394,543.22/x
  3. Step 3: Cross multiply
    483,114.02x = 721,417.71 × 394,543.22
  4. Step 4: Simplify right side
    483,114.02x = 284,630,464,295.71
  5. Step 5: Solve for x
    x = 284,630,464,295.71/483,114.02
  6. Step 6: Final answer
    x = 589,157.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.