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Finding the Fourth Proportional to 528,630.96, 729,499.86 and 299,184.15

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Solution

The fourth proportional to 528,630.96, 729,499.86 and 299,184.15 is: 412,867.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,630.96 : 729,499.86 = 299,184.15 : x
  2. Step 2: Convert to fraction form
    528,630.96/729,499.86 = 299,184.15/x
  3. Step 3: Cross multiply
    528,630.96x = 729,499.86 × 299,184.15
  4. Step 4: Simplify right side
    528,630.96x = 218,254,795,539.22
  5. Step 5: Solve for x
    x = 218,254,795,539.22/528,630.96
  6. Step 6: Final answer
    x = 412,867.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.