Home / 626,905.98-865,140.55-354,966.71

Finding the Fourth Proportional to 626,905.98, 865,140.55 and 354,966.71

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Solution

The fourth proportional to 626,905.98, 865,140.55 and 354,966.71 is: 489,859.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,905.98 : 865,140.55 = 354,966.71 : x
  2. Step 2: Convert to fraction form
    626,905.98/865,140.55 = 354,966.71/x
  3. Step 3: Cross multiply
    626,905.98x = 865,140.55 × 354,966.71
  4. Step 4: Simplify right side
    626,905.98x = 307,096,089,507.97
  5. Step 5: Solve for x
    x = 307,096,089,507.97/626,905.98
  6. Step 6: Final answer
    x = 489,859.88

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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.