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Finding the Fourth Proportional to 713,670.72, 1,070,507.94 and 240,688.32

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Solution

The fourth proportional to 713,670.72, 1,070,507.94 and 240,688.32 is: 361,033.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,670.72 : 1,070,507.94 = 240,688.32 : x
  2. Step 2: Convert to fraction form
    713,670.72/1,070,507.94 = 240,688.32/x
  3. Step 3: Cross multiply
    713,670.72x = 1,070,507.94 × 240,688.32
  4. Step 4: Simplify right side
    713,670.72x = 257,658,757,625.26
  5. Step 5: Solve for x
    x = 257,658,757,625.26/713,670.72
  6. Step 6: Final answer
    x = 361,033.11

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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.