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Finding the Fourth Proportional to 539,727.36, 745,045.56 and 368,211.48

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Solution

The fourth proportional to 539,727.36, 745,045.56 and 368,211.48 is: 508,283.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,727.36 : 745,045.56 = 368,211.48 : x
  2. Step 2: Convert to fraction form
    539,727.36/745,045.56 = 368,211.48/x
  3. Step 3: Cross multiply
    539,727.36x = 745,045.56 × 368,211.48
  4. Step 4: Simplify right side
    539,727.36x = 274,334,328,315.03
  5. Step 5: Solve for x
    x = 274,334,328,315.03/539,727.36
  6. Step 6: Final answer
    x = 508,283.16

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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.