Home / 626,938.37-865,439.77-423,265.15

Finding the Fourth Proportional to 626,938.37, 865,439.77 and 423,265.15

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Solution

The fourth proportional to 626,938.37, 865,439.77 and 423,265.15 is: 584,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,938.37 : 865,439.77 = 423,265.15 : x
  2. Step 2: Convert to fraction form
    626,938.37/865,439.77 = 423,265.15/x
  3. Step 3: Cross multiply
    626,938.37x = 865,439.77 × 423,265.15
  4. Step 4: Simplify right side
    626,938.37x = 366,310,489,737.82
  5. Step 5: Solve for x
    x = 366,310,489,737.82/626,938.37
  6. Step 6: Final answer
    x = 584,284.69

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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.