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Finding the Fourth Proportional to 368,316.48, 552,474.72 and 243,628.32

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Solution

The fourth proportional to 368,316.48, 552,474.72 and 243,628.32 is: 365,442.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,316.48 : 552,474.72 = 243,628.32 : x
  2. Step 2: Convert to fraction form
    368,316.48/552,474.72 = 243,628.32/x
  3. Step 3: Cross multiply
    368,316.48x = 552,474.72 × 243,628.32
  4. Step 4: Simplify right side
    368,316.48x = 134,598,487,876.07
  5. Step 5: Solve for x
    x = 134,598,487,876.07/368,316.48
  6. Step 6: Final answer
    x = 365,442.48

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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.