Home / 769,812.64-1,062,345.36-430,273.60

Finding the Fourth Proportional to 769,812.64, 1,062,345.36 and 430,273.60

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Solution

The fourth proportional to 769,812.64, 1,062,345.36 and 430,273.60 is: 593,779.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,812.64 : 1,062,345.36 = 430,273.60 : x
  2. Step 2: Convert to fraction form
    769,812.64/1,062,345.36 = 430,273.60/x
  3. Step 3: Cross multiply
    769,812.64x = 1,062,345.36 × 430,273.60
  4. Step 4: Simplify right side
    769,812.64x = 457,099,162,490.50
  5. Step 5: Solve for x
    x = 457,099,162,490.50/769,812.64
  6. Step 6: Final answer
    x = 593,779.76

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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.