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Finding the Fourth Proportional to 942,716.72, 1,300,978.35 and 534,835.74

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Solution

The fourth proportional to 942,716.72, 1,300,978.35 and 534,835.74 is: 738,089.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,716.72 : 1,300,978.35 = 534,835.74 : x
  2. Step 2: Convert to fraction form
    942,716.72/1,300,978.35 = 534,835.74/x
  3. Step 3: Cross multiply
    942,716.72x = 1,300,978.35 × 534,835.74
  4. Step 4: Simplify right side
    942,716.72x = 695,809,718,546.23
  5. Step 5: Solve for x
    x = 695,809,718,546.23/942,716.72
  6. Step 6: Final answer
    x = 738,089.93

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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.