Home / 405,181.60-607,772.40-272,125.60

Finding the Fourth Proportional to 405,181.60, 607,772.40 and 272,125.60

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Solution

The fourth proportional to 405,181.60, 607,772.40 and 272,125.60 is: 408,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,181.60 : 607,772.40 = 272,125.60 : x
  2. Step 2: Convert to fraction form
    405,181.60/607,772.40 = 272,125.60/x
  3. Step 3: Cross multiply
    405,181.60x = 607,772.40 × 272,125.60
  4. Step 4: Simplify right side
    405,181.60x = 165,390,429,013.44
  5. Step 5: Solve for x
    x = 165,390,429,013.44/405,181.60
  6. Step 6: Final answer
    x = 408,188.40

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1.5x scale

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.