Home / 626,741.57-864,956.90-354,857.38

Finding the Fourth Proportional to 626,741.57, 864,956.90 and 354,857.38

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Solution

The fourth proportional to 626,741.57, 864,956.90 and 354,857.38 is: 489,733.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,741.57 : 864,956.90 = 354,857.38 : x
  2. Step 2: Convert to fraction form
    626,741.57/864,956.90 = 354,857.38/x
  3. Step 3: Cross multiply
    626,741.57x = 864,956.90 × 354,857.38
  4. Step 4: Simplify right side
    626,741.57x = 306,936,338,071.67
  5. Step 5: Solve for x
    x = 306,936,338,071.67/626,741.57
  6. Step 6: Final answer
    x = 489,733.49

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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.