Home / 641,943.34-885,875.45-347,591.64

Finding the Fourth Proportional to 641,943.34, 885,875.45 and 347,591.64

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Solution

The fourth proportional to 641,943.34, 885,875.45 and 347,591.64 is: 479,673.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,943.34 : 885,875.45 = 347,591.64 : x
  2. Step 2: Convert to fraction form
    641,943.34/885,875.45 = 347,591.64/x
  3. Step 3: Cross multiply
    641,943.34x = 885,875.45 × 347,591.64
  4. Step 4: Simplify right side
    641,943.34x = 307,922,898,763.28
  5. Step 5: Solve for x
    x = 307,922,898,763.28/641,943.34
  6. Step 6: Final answer
    x = 479,673.02

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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.