Home / 354,477.20-531,533.40-105,126.80

Finding the Fourth Proportional to 354,477.20, 531,533.40 and 105,126.80

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Solution

The fourth proportional to 354,477.20, 531,533.40 and 105,126.80 is: 157,636.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,477.20 : 531,533.40 = 105,126.80 : x
  2. Step 2: Convert to fraction form
    354,477.20/531,533.40 = 105,126.80/x
  3. Step 3: Cross multiply
    354,477.20x = 531,533.40 × 105,126.80
  4. Step 4: Simplify right side
    354,477.20x = 55,878,405,435.12
  5. Step 5: Solve for x
    x = 55,878,405,435.12/354,477.20
  6. Step 6: Final answer
    x = 157,636.11

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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.