Home / 818,247.20-1,129,100.58-455,657.18

Finding the Fourth Proportional to 818,247.20, 1,129,100.58 and 455,657.18

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Solution

The fourth proportional to 818,247.20, 1,129,100.58 and 455,657.18 is: 628,762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,247.20 : 1,129,100.58 = 455,657.18 : x
  2. Step 2: Convert to fraction form
    818,247.20/1,129,100.58 = 455,657.18/x
  3. Step 3: Cross multiply
    818,247.20x = 1,129,100.58 × 455,657.18
  4. Step 4: Simplify right side
    818,247.20x = 514,482,780,573.66
  5. Step 5: Solve for x
    x = 514,482,780,573.66/818,247.20
  6. Step 6: Final answer
    x = 628,762.05

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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.