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Finding the Fourth Proportional to 508,907.46, 702,480.96 and 436,998.90

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Solution

The fourth proportional to 508,907.46, 702,480.96 and 436,998.90 is: 603,220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,907.46 : 702,480.96 = 436,998.90 : x
  2. Step 2: Convert to fraction form
    508,907.46/702,480.96 = 436,998.90/x
  3. Step 3: Cross multiply
    508,907.46x = 702,480.96 × 436,998.90
  4. Step 4: Simplify right side
    508,907.46x = 306,983,406,790.94
  5. Step 5: Solve for x
    x = 306,983,406,790.94/508,907.46
  6. Step 6: Final answer
    x = 603,220.49

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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.