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Finding the Fourth Proportional to 368,254.28, 549,693.01 and 315,999.56

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Solution

The fourth proportional to 368,254.28, 549,693.01 and 315,999.56 is: 471,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,254.28 : 549,693.01 = 315,999.56 : x
  2. Step 2: Convert to fraction form
    368,254.28/549,693.01 = 315,999.56/x
  3. Step 3: Cross multiply
    368,254.28x = 549,693.01 × 315,999.56
  4. Step 4: Simplify right side
    368,254.28x = 173,702,749,295.08
  5. Step 5: Solve for x
    x = 173,702,749,295.08/368,254.28
  6. Step 6: Final answer
    x = 471,692.41

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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.