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Finding the Fourth Proportional to 623,081.52, 860,139.54 and 364,922.64

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Solution

The fourth proportional to 623,081.52, 860,139.54 and 364,922.64 is: 503,761.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,081.52 : 860,139.54 = 364,922.64 : x
  2. Step 2: Convert to fraction form
    623,081.52/860,139.54 = 364,922.64/x
  3. Step 3: Cross multiply
    623,081.52x = 860,139.54 × 364,922.64
  4. Step 4: Simplify right side
    623,081.52x = 313,884,391,705.19
  5. Step 5: Solve for x
    x = 313,884,391,705.19/623,081.52
  6. Step 6: Final answer
    x = 503,761.36

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Double scale
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1.5x scale

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.