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Finding the Fourth Proportional to 611,828.69, 917,761.12 and 292,014.25

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Solution

The fourth proportional to 611,828.69, 917,761.12 and 292,014.25 is: 438,030.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,828.69 : 917,761.12 = 292,014.25 : x
  2. Step 2: Convert to fraction form
    611,828.69/917,761.12 = 292,014.25/x
  3. Step 3: Cross multiply
    611,828.69x = 917,761.12 × 292,014.25
  4. Step 4: Simplify right side
    611,828.69x = 267,999,322,111.52
  5. Step 5: Solve for x
    x = 267,999,322,111.52/611,828.69
  6. Step 6: Final answer
    x = 438,030.01

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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.