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Finding the Fourth Proportional to 622,081.60, 934,106.55 and 472,490.80

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Solution

The fourth proportional to 622,081.60, 934,106.55 and 472,490.80 is: 709,483.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,081.60 : 934,106.55 = 472,490.80 : x
  2. Step 2: Convert to fraction form
    622,081.60/934,106.55 = 472,490.80/x
  3. Step 3: Cross multiply
    622,081.60x = 934,106.55 × 472,490.80
  4. Step 4: Simplify right side
    622,081.60x = 441,356,751,094.74
  5. Step 5: Solve for x
    x = 441,356,751,094.74/622,081.60
  6. Step 6: Final answer
    x = 709,483.69

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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.