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Finding the Fourth Proportional to 534,354.05, 737,409.71 and 289,341.50

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Solution

The fourth proportional to 534,354.05, 737,409.71 and 289,341.50 is: 399,291.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,354.05 : 737,409.71 = 289,341.50 : x
  2. Step 2: Convert to fraction form
    534,354.05/737,409.71 = 289,341.50/x
  3. Step 3: Cross multiply
    534,354.05x = 737,409.71 × 289,341.50
  4. Step 4: Simplify right side
    534,354.05x = 213,363,228,642.27
  5. Step 5: Solve for x
    x = 213,363,228,642.27/534,354.05
  6. Step 6: Final answer
    x = 399,291.87

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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.