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Finding the Fourth Proportional to 555,366.51, 832,488.93 and 218,643.51

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Solution

The fourth proportional to 555,366.51, 832,488.93 and 218,643.51 is: 327,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,366.51 : 832,488.93 = 218,643.51 : x
  2. Step 2: Convert to fraction form
    555,366.51/832,488.93 = 218,643.51/x
  3. Step 3: Cross multiply
    555,366.51x = 832,488.93 × 218,643.51
  4. Step 4: Simplify right side
    555,366.51x = 182,018,301,691.34
  5. Step 5: Solve for x
    x = 182,018,301,691.34/555,366.51
  6. Step 6: Final answer
    x = 327,744.47

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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.