Home / 645,185.27-890,099.93-373,202.66

Finding the Fourth Proportional to 645,185.27, 890,099.93 and 373,202.66

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Solution

The fourth proportional to 645,185.27, 890,099.93 and 373,202.66 is: 514,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,185.27 : 890,099.93 = 373,202.66 : x
  2. Step 2: Convert to fraction form
    645,185.27/890,099.93 = 373,202.66/x
  3. Step 3: Cross multiply
    645,185.27x = 890,099.93 × 373,202.66
  4. Step 4: Simplify right side
    645,185.27x = 332,187,661,541.81
  5. Step 5: Solve for x
    x = 332,187,661,541.81/645,185.27
  6. Step 6: Final answer
    x = 514,871.74

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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.