Home / 818,256.12-1,129,184.34-455,672.04

Finding the Fourth Proportional to 818,256.12, 1,129,184.34 and 455,672.04

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Solution

The fourth proportional to 818,256.12, 1,129,184.34 and 455,672.04 is: 628,822.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,256.12 : 1,129,184.34 = 455,672.04 : x
  2. Step 2: Convert to fraction form
    818,256.12/1,129,184.34 = 455,672.04/x
  3. Step 3: Cross multiply
    818,256.12x = 1,129,184.34 × 455,672.04
  4. Step 4: Simplify right side
    818,256.12x = 514,537,731,743.85
  5. Step 5: Solve for x
    x = 514,537,731,743.85/818,256.12
  6. Step 6: Final answer
    x = 628,822.34

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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.