Home / 638,984.04-958,311.90-189,598.60

Finding the Fourth Proportional to 638,984.04, 958,311.90 and 189,598.60

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Solution

The fourth proportional to 638,984.04, 958,311.90 and 189,598.60 is: 284,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,984.04 : 958,311.90 = 189,598.60 : x
  2. Step 2: Convert to fraction form
    638,984.04/958,311.90 = 189,598.60/x
  3. Step 3: Cross multiply
    638,984.04x = 958,311.90 × 189,598.60
  4. Step 4: Simplify right side
    638,984.04x = 181,694,594,603.34
  5. Step 5: Solve for x
    x = 181,694,594,603.34/638,984.04
  6. Step 6: Final answer
    x = 284,349.19

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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.