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Finding the Fourth Proportional to 702,907.30, 1,054,373.88 and 253,661.86

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Solution

The fourth proportional to 702,907.30, 1,054,373.88 and 253,661.86 is: 380,497.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,907.30 : 1,054,373.88 = 253,661.86 : x
  2. Step 2: Convert to fraction form
    702,907.30/1,054,373.88 = 253,661.86/x
  3. Step 3: Cross multiply
    702,907.30x = 1,054,373.88 × 253,661.86
  4. Step 4: Simplify right side
    702,907.30x = 267,454,439,536.22
  5. Step 5: Solve for x
    x = 267,454,439,536.22/702,907.30
  6. Step 6: Final answer
    x = 380,497.46

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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.