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Finding the Fourth Proportional to 554,535.54, 765,465.96 and 431,784.90

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Solution

The fourth proportional to 554,535.54, 765,465.96 and 431,784.90 is: 596,024.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,535.54 : 765,465.96 = 431,784.90 : x
  2. Step 2: Convert to fraction form
    554,535.54/765,465.96 = 431,784.90/x
  3. Step 3: Cross multiply
    554,535.54x = 765,465.96 × 431,784.90
  4. Step 4: Simplify right side
    554,535.54x = 330,516,642,992.00
  5. Step 5: Solve for x
    x = 330,516,642,992.00/554,535.54
  6. Step 6: Final answer
    x = 596,024.27

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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.