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Finding the Fourth Proportional to 550,316.72, 759,425.22 and 308,593.98

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Solution

The fourth proportional to 550,316.72, 759,425.22 and 308,593.98 is: 425,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,316.72 : 759,425.22 = 308,593.98 : x
  2. Step 2: Convert to fraction form
    550,316.72/759,425.22 = 308,593.98/x
  3. Step 3: Cross multiply
    550,316.72x = 759,425.22 × 308,593.98
  4. Step 4: Simplify right side
    550,316.72x = 234,354,051,152.18
  5. Step 5: Solve for x
    x = 234,354,051,152.18/550,316.72
  6. Step 6: Final answer
    x = 425,853.05

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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.