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Finding the Fourth Proportional to 5,287,326.06, 7,931,409.28 and 2,254,717.82

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Solution

The fourth proportional to 5,287,326.06, 7,931,409.28 and 2,254,717.82 is: 3,382,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287,326.06 : 7,931,409.28 = 2,254,717.82 : x
  2. Step 2: Convert to fraction form
    5,287,326.06/7,931,409.28 = 2,254,717.82/x
  3. Step 3: Cross multiply
    5,287,326.06x = 7,931,409.28 × 2,254,717.82
  4. Step 4: Simplify right side
    5,287,326.06x = 17,883,089,841,329.37
  5. Step 5: Solve for x
    x = 17,883,089,841,329.37/5,287,326.06
  6. Step 6: Final answer
    x = 3,382,255.92

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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.