Home / 623,719.80-860,536.82-381,750.12

Finding the Fourth Proportional to 623,719.80, 860,536.82 and 381,750.12

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Solution

The fourth proportional to 623,719.80, 860,536.82 and 381,750.12 is: 526,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,719.80 : 860,536.82 = 381,750.12 : x
  2. Step 2: Convert to fraction form
    623,719.80/860,536.82 = 381,750.12/x
  3. Step 3: Cross multiply
    623,719.80x = 860,536.82 × 381,750.12
  4. Step 4: Simplify right side
    623,719.80x = 328,510,034,299.42
  5. Step 5: Solve for x
    x = 328,510,034,299.42/623,719.80
  6. Step 6: Final answer
    x = 526,694.89

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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.