Home / 638,415.36-957,899.52-342,581.76

Finding the Fourth Proportional to 638,415.36, 957,899.52 and 342,581.76

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Solution

The fourth proportional to 638,415.36, 957,899.52 and 342,581.76 is: 514,021.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,415.36 : 957,899.52 = 342,581.76 : x
  2. Step 2: Convert to fraction form
    638,415.36/957,899.52 = 342,581.76/x
  3. Step 3: Cross multiply
    638,415.36x = 957,899.52 × 342,581.76
  4. Step 4: Simplify right side
    638,415.36x = 328,158,903,464.76
  5. Step 5: Solve for x
    x = 328,158,903,464.76/638,415.36
  6. Step 6: Final answer
    x = 514,021.00

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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.