Home / 644,748.03-889,734.60-358,260.75

Finding the Fourth Proportional to 644,748.03, 889,734.60 and 358,260.75

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Solution

The fourth proportional to 644,748.03, 889,734.60 and 358,260.75 is: 494,390.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,748.03 : 889,734.60 = 358,260.75 : x
  2. Step 2: Convert to fraction form
    644,748.03/889,734.60 = 358,260.75/x
  3. Step 3: Cross multiply
    644,748.03x = 889,734.60 × 358,260.75
  4. Step 4: Simplify right side
    644,748.03x = 318,756,985,096.95
  5. Step 5: Solve for x
    x = 318,756,985,096.95/644,748.03
  6. Step 6: Final answer
    x = 494,390.01

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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.