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Finding the Fourth Proportional to 580,645.83, 801,303.94 and 319,004.51

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Solution

The fourth proportional to 580,645.83, 801,303.94 and 319,004.51 is: 440,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,645.83 : 801,303.94 = 319,004.51 : x
  2. Step 2: Convert to fraction form
    580,645.83/801,303.94 = 319,004.51/x
  3. Step 3: Cross multiply
    580,645.83x = 801,303.94 × 319,004.51
  4. Step 4: Simplify right side
    580,645.83x = 255,619,569,145.75
  5. Step 5: Solve for x
    x = 255,619,569,145.75/580,645.83
  6. Step 6: Final answer
    x = 440,233.20

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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.