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Finding the Fourth Proportional to 619,476.96, 853,973.32 and 437,868.48

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Solution

The fourth proportional to 619,476.96, 853,973.32 and 437,868.48 is: 603,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,476.96 : 853,973.32 = 437,868.48 : x
  2. Step 2: Convert to fraction form
    619,476.96/853,973.32 = 437,868.48/x
  3. Step 3: Cross multiply
    619,476.96x = 853,973.32 × 437,868.48
  4. Step 4: Simplify right side
    619,476.96x = 373,927,999,588.95
  5. Step 5: Solve for x
    x = 373,927,999,588.95/619,476.96
  6. Step 6: Final answer
    x = 603,618.90

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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.