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Finding the Fourth Proportional to 619,466.95, 853,959.54 and 437,858.47

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Solution

The fourth proportional to 619,466.95, 853,959.54 and 437,858.47 is: 603,605.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,466.95 : 853,959.54 = 437,858.47 : x
  2. Step 2: Convert to fraction form
    619,466.95/853,959.54 = 437,858.47/x
  3. Step 3: Cross multiply
    619,466.95x = 853,959.54 × 437,858.47
  4. Step 4: Simplify right side
    619,466.95x = 373,913,417,626.30
  5. Step 5: Solve for x
    x = 373,913,417,626.30/619,466.95
  6. Step 6: Final answer
    x = 603,605.11

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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.