Home / 1,228,715.78-1,843,903.56-430,004.30

Finding the Fourth Proportional to 1,228,715.78, 1,843,903.56 and 430,004.30

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Solution

The fourth proportional to 1,228,715.78, 1,843,903.56 and 430,004.30 is: 645,296.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,715.78 : 1,843,903.56 = 430,004.30 : x
  2. Step 2: Convert to fraction form
    1,228,715.78/1,843,903.56 = 430,004.30/x
  3. Step 3: Cross multiply
    1,228,715.78x = 1,843,903.56 × 430,004.30
  4. Step 4: Simplify right side
    1,228,715.78x = 792,886,459,585.31
  5. Step 5: Solve for x
    x = 792,886,459,585.31/1,228,715.78
  6. Step 6: Final answer
    x = 645,296.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.