Home / 940,809.95-1,298,328.78-511,096.85

Finding the Fourth Proportional to 940,809.95, 1,298,328.78 and 511,096.85

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Solution

The fourth proportional to 940,809.95, 1,298,328.78 and 511,096.85 is: 705,319.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,809.95 : 1,298,328.78 = 511,096.85 : x
  2. Step 2: Convert to fraction form
    940,809.95/1,298,328.78 = 511,096.85/x
  3. Step 3: Cross multiply
    940,809.95x = 1,298,328.78 × 511,096.85
  4. Step 4: Simplify right side
    940,809.95x = 663,571,743,230.70
  5. Step 5: Solve for x
    x = 663,571,743,230.70/940,809.95
  6. Step 6: Final answer
    x = 705,319.65

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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.