Home / 838,290.18-1,256,729.96-364,618.78

Finding the Fourth Proportional to 838,290.18, 1,256,729.96 and 364,618.78

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Solution

The fourth proportional to 838,290.18, 1,256,729.96 and 364,618.78 is: 546,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,290.18 : 1,256,729.96 = 364,618.78 : x
  2. Step 2: Convert to fraction form
    838,290.18/1,256,729.96 = 364,618.78/x
  3. Step 3: Cross multiply
    838,290.18x = 1,256,729.96 × 364,618.78
  4. Step 4: Simplify right side
    838,290.18x = 458,227,348,617.99
  5. Step 5: Solve for x
    x = 458,227,348,617.99/838,290.18
  6. Step 6: Final answer
    x = 546,621.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.