Home / 461,445.28-636,660.24-289,505.44

Finding the Fourth Proportional to 461,445.28, 636,660.24 and 289,505.44

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Solution

The fourth proportional to 461,445.28, 636,660.24 and 289,505.44 is: 399,433.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,445.28 : 636,660.24 = 289,505.44 : x
  2. Step 2: Convert to fraction form
    461,445.28/636,660.24 = 289,505.44/x
  3. Step 3: Cross multiply
    461,445.28x = 636,660.24 × 289,505.44
  4. Step 4: Simplify right side
    461,445.28x = 184,316,602,911.71
  5. Step 5: Solve for x
    x = 184,316,602,911.71/461,445.28
  6. Step 6: Final answer
    x = 399,433.28

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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.