Home / 626,938.77-865,440.35-423,265.57

Finding the Fourth Proportional to 626,938.77, 865,440.35 and 423,265.57

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Solution

The fourth proportional to 626,938.77, 865,440.35 and 423,265.57 is: 584,285.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,938.77 : 865,440.35 = 423,265.57 : x
  2. Step 2: Convert to fraction form
    626,938.77/865,440.35 = 423,265.57/x
  3. Step 3: Cross multiply
    626,938.77x = 865,440.35 × 423,265.57
  4. Step 4: Simplify right side
    626,938.77x = 366,311,100,351.07
  5. Step 5: Solve for x
    x = 366,311,100,351.07/626,938.77
  6. Step 6: Final answer
    x = 584,285.29

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Half scale
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Double scale
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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.