Home / 681,618.74-939,895.53-463,968.50

Finding the Fourth Proportional to 681,618.74, 939,895.53 and 463,968.50

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Solution

The fourth proportional to 681,618.74, 939,895.53 and 463,968.50 is: 639,773.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,618.74 : 939,895.53 = 463,968.50 : x
  2. Step 2: Convert to fraction form
    681,618.74/939,895.53 = 463,968.50/x
  3. Step 3: Cross multiply
    681,618.74x = 939,895.53 × 463,968.50
  4. Step 4: Simplify right side
    681,618.74x = 436,081,919,210.81
  5. Step 5: Solve for x
    x = 436,081,919,210.81/681,618.74
  6. Step 6: Final answer
    x = 639,773.96

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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.