Home / 827,881.08-1,240,782.76-354,009.20

Finding the Fourth Proportional to 827,881.08, 1,240,782.76 and 354,009.20

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Solution

The fourth proportional to 827,881.08, 1,240,782.76 and 354,009.20 is: 530,569.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,881.08 : 1,240,782.76 = 354,009.20 : x
  2. Step 2: Convert to fraction form
    827,881.08/1,240,782.76 = 354,009.20/x
  3. Step 3: Cross multiply
    827,881.08x = 1,240,782.76 × 354,009.20
  4. Step 4: Simplify right side
    827,881.08x = 439,248,512,241.39
  5. Step 5: Solve for x
    x = 439,248,512,241.39/827,881.08
  6. Step 6: Final answer
    x = 530,569.57

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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.