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Finding the Fourth Proportional to 554,712.63, 765,260.28 and 325,153.53

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Solution

The fourth proportional to 554,712.63, 765,260.28 and 325,153.53 is: 448,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,712.63 : 765,260.28 = 325,153.53 : x
  2. Step 2: Convert to fraction form
    554,712.63/765,260.28 = 325,153.53/x
  3. Step 3: Cross multiply
    554,712.63x = 765,260.28 × 325,153.53
  4. Step 4: Simplify right side
    554,712.63x = 248,827,081,410.79
  5. Step 5: Solve for x
    x = 248,827,081,410.79/554,712.63
  6. Step 6: Final answer
    x = 448,569.35

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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.