Home / 920,099.64-1,269,723.81-512,200.74

Finding the Fourth Proportional to 920,099.64, 1,269,723.81 and 512,200.74

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Solution

The fourth proportional to 920,099.64, 1,269,723.81 and 512,200.74 is: 706,829.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,099.64 : 1,269,723.81 = 512,200.74 : x
  2. Step 2: Convert to fraction form
    920,099.64/1,269,723.81 = 512,200.74/x
  3. Step 3: Cross multiply
    920,099.64x = 1,269,723.81 × 512,200.74
  4. Step 4: Simplify right side
    920,099.64x = 650,353,475,077.62
  5. Step 5: Solve for x
    x = 650,353,475,077.62/920,099.64
  6. Step 6: Final answer
    x = 706,829.40

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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.