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Finding the Fourth Proportional to 619,457.95, 853,947.12 and 437,849.47

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Solution

The fourth proportional to 619,457.95, 853,947.12 and 437,849.47 is: 603,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,457.95 : 853,947.12 = 437,849.47 : x
  2. Step 2: Convert to fraction form
    619,457.95/853,947.12 = 437,849.47/x
  3. Step 3: Cross multiply
    619,457.95x = 853,947.12 × 437,849.47
  4. Step 4: Simplify right side
    619,457.95x = 373,900,293,900.03
  5. Step 5: Solve for x
    x = 373,900,293,900.03/619,457.95
  6. Step 6: Final answer
    x = 603,592.70

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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.