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Finding the Fourth Proportional to 619,456.95, 853,945.74 and 437,848.47

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Solution

The fourth proportional to 619,456.95, 853,945.74 and 437,848.47 is: 603,591.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,456.95 : 853,945.74 = 437,848.47 : x
  2. Step 2: Convert to fraction form
    619,456.95/853,945.74 = 437,848.47/x
  3. Step 3: Cross multiply
    619,456.95x = 853,945.74 × 437,848.47
  4. Step 4: Simplify right side
    619,456.95x = 373,898,835,722.02
  5. Step 5: Solve for x
    x = 373,898,835,722.02/619,456.95
  6. Step 6: Final answer
    x = 603,591.32

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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.