Home / 814,809.38-1,124,643.63-556,790.76

Finding the Fourth Proportional to 814,809.38, 1,124,643.63 and 556,790.76

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Solution

The fourth proportional to 814,809.38, 1,124,643.63 and 556,790.76 is: 768,512.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,809.38 : 1,124,643.63 = 556,790.76 : x
  2. Step 2: Convert to fraction form
    814,809.38/1,124,643.63 = 556,790.76/x
  3. Step 3: Cross multiply
    814,809.38x = 1,124,643.63 × 556,790.76
  4. Step 4: Simplify right side
    814,809.38x = 626,191,181,476.86
  5. Step 5: Solve for x
    x = 626,191,181,476.86/814,809.38
  6. Step 6: Final answer
    x = 768,512.49

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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.