Home / 641,567.15-885,302.56-383,392.69

Finding the Fourth Proportional to 641,567.15, 885,302.56 and 383,392.69

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Solution

The fourth proportional to 641,567.15, 885,302.56 and 383,392.69 is: 529,046.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,567.15 : 885,302.56 = 383,392.69 : x
  2. Step 2: Convert to fraction form
    641,567.15/885,302.56 = 383,392.69/x
  3. Step 3: Cross multiply
    641,567.15x = 885,302.56 × 383,392.69
  4. Step 4: Simplify right side
    641,567.15x = 339,418,533,188.10
  5. Step 5: Solve for x
    x = 339,418,533,188.10/641,567.15
  6. Step 6: Final answer
    x = 529,046.00

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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.