Home / 623,380.08-860,061.96-381,410.40

Finding the Fourth Proportional to 623,380.08, 860,061.96 and 381,410.40

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Solution

The fourth proportional to 623,380.08, 860,061.96 and 381,410.40 is: 526,222.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,380.08 : 860,061.96 = 381,410.40 : x
  2. Step 2: Convert to fraction form
    623,380.08/860,061.96 = 381,410.40/x
  3. Step 3: Cross multiply
    623,380.08x = 860,061.96 × 381,410.40
  4. Step 4: Simplify right side
    623,380.08x = 328,036,576,188.38
  5. Step 5: Solve for x
    x = 328,036,576,188.38/623,380.08
  6. Step 6: Final answer
    x = 526,222.42

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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.