Home / 645,184.77-890,099.24-373,202.16

Finding the Fourth Proportional to 645,184.77, 890,099.24 and 373,202.16

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Solution

The fourth proportional to 645,184.77, 890,099.24 and 373,202.16 is: 514,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,184.77 : 890,099.24 = 373,202.16 : x
  2. Step 2: Convert to fraction form
    645,184.77/890,099.24 = 373,202.16/x
  3. Step 3: Cross multiply
    645,184.77x = 890,099.24 × 373,202.16
  4. Step 4: Simplify right side
    645,184.77x = 332,186,954,531.86
  5. Step 5: Solve for x
    x = 332,186,954,531.86/645,184.77
  6. Step 6: Final answer
    x = 514,871.05

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Double scale
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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.