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Finding the Fourth Proportional to 623,716.66, 860,532.51 and 381,746.98

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Solution

The fourth proportional to 623,716.66, 860,532.51 and 381,746.98 is: 526,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,716.66 : 860,532.51 = 381,746.98 : x
  2. Step 2: Convert to fraction form
    623,716.66/860,532.51 = 381,746.98/x
  3. Step 3: Cross multiply
    623,716.66x = 860,532.51 × 381,746.98
  4. Step 4: Simplify right side
    623,716.66x = 328,505,686,884.32
  5. Step 5: Solve for x
    x = 328,505,686,884.32/623,716.66
  6. Step 6: Final answer
    x = 526,690.58

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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.