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Finding the Fourth Proportional to 676,434, 933,441.48 and 374,604.24

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Solution

The fourth proportional to 676,434, 933,441.48 and 374,604.24 is: 516,933.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,434 : 933,441.48 = 374,604.24 : x
  2. Step 2: Convert to fraction form
    676,434/933,441.48 = 374,604.24/x
  3. Step 3: Cross multiply
    676,434x = 933,441.48 × 374,604.24
  4. Step 4: Simplify right side
    676,434x = 349,671,136,199.88
  5. Step 5: Solve for x
    x = 349,671,136,199.88/676,434
  6. Step 6: Final answer
    x = 516,933.12

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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.