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Finding the Fourth Proportional to 603,803.57, 833,327.76 and 389,566.88

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Solution

The fourth proportional to 603,803.57, 833,327.76 and 389,566.88 is: 537,653.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,803.57 : 833,327.76 = 389,566.88 : x
  2. Step 2: Convert to fraction form
    603,803.57/833,327.76 = 389,566.88/x
  3. Step 3: Cross multiply
    603,803.57x = 833,327.76 × 389,566.88
  4. Step 4: Simplify right side
    603,803.57x = 324,636,891,313.95
  5. Step 5: Solve for x
    x = 324,636,891,313.95/603,803.57
  6. Step 6: Final answer
    x = 537,653.15

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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.