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Finding the Fourth Proportional to 539,642.84, 744,708.06 and 297,925.81

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Solution

The fourth proportional to 539,642.84, 744,708.06 and 297,925.81 is: 411,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,642.84 : 744,708.06 = 297,925.81 : x
  2. Step 2: Convert to fraction form
    539,642.84/744,708.06 = 297,925.81/x
  3. Step 3: Cross multiply
    539,642.84x = 744,708.06 × 297,925.81
  4. Step 4: Simplify right side
    539,642.84x = 221,867,750,127.26
  5. Step 5: Solve for x
    x = 221,867,750,127.26/539,642.84
  6. Step 6: Final answer
    x = 411,138.14

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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.