Home / 626,961.81-865,472.06-423,288.52

Finding the Fourth Proportional to 626,961.81, 865,472.06 and 423,288.52

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Solution

The fourth proportional to 626,961.81, 865,472.06 and 423,288.52 is: 584,316.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,961.81 : 865,472.06 = 423,288.52 : x
  2. Step 2: Convert to fraction form
    626,961.81/865,472.06 = 423,288.52/x
  3. Step 3: Cross multiply
    626,961.81x = 865,472.06 × 423,288.52
  4. Step 4: Simplify right side
    626,961.81x = 366,344,387,378.75
  5. Step 5: Solve for x
    x = 366,344,387,378.75/626,961.81
  6. Step 6: Final answer
    x = 584,316.91

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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.