Home / 826,485.30-1,140,566.63-463,935.38

Finding the Fourth Proportional to 826,485.30, 1,140,566.63 and 463,935.38

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Solution

The fourth proportional to 826,485.30, 1,140,566.63 and 463,935.38 is: 640,240.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,485.30 : 1,140,566.63 = 463,935.38 : x
  2. Step 2: Convert to fraction form
    826,485.30/1,140,566.63 = 463,935.38/x
  3. Step 3: Cross multiply
    826,485.30x = 1,140,566.63 × 463,935.38
  4. Step 4: Simplify right side
    826,485.30x = 529,149,204,881.86
  5. Step 5: Solve for x
    x = 529,149,204,881.86/826,485.30
  6. Step 6: Final answer
    x = 640,240.31

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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.