Home / 645,185.14-890,099.76-373,202.53

Finding the Fourth Proportional to 645,185.14, 890,099.76 and 373,202.53

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Solution

The fourth proportional to 645,185.14, 890,099.76 and 373,202.53 is: 514,871.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,185.14 : 890,099.76 = 373,202.53 : x
  2. Step 2: Convert to fraction form
    645,185.14/890,099.76 = 373,202.53/x
  3. Step 3: Cross multiply
    645,185.14x = 890,099.76 × 373,202.53
  4. Step 4: Simplify right side
    645,185.14x = 332,187,482,384.39
  5. Step 5: Solve for x
    x = 332,187,482,384.39/645,185.14
  6. Step 6: Final answer
    x = 514,871.56

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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.