Home / 781,514.94-1,078,548.54-437,385.36

Finding the Fourth Proportional to 781,514.94, 1,078,548.54 and 437,385.36

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Solution

The fourth proportional to 781,514.94, 1,078,548.54 and 437,385.36 is: 603,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,514.94 : 1,078,548.54 = 437,385.36 : x
  2. Step 2: Convert to fraction form
    781,514.94/1,078,548.54 = 437,385.36/x
  3. Step 3: Cross multiply
    781,514.94x = 1,078,548.54 × 437,385.36
  4. Step 4: Simplify right side
    781,514.94x = 471,741,341,445.37
  5. Step 5: Solve for x
    x = 471,741,341,445.37/781,514.94
  6. Step 6: Final answer
    x = 603,624.21

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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.