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Finding the Fourth Proportional to 495,365.54, 683,813.70 and 334,438.56

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Solution

The fourth proportional to 495,365.54, 683,813.70 and 334,438.56 is: 461,666.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,365.54 : 683,813.70 = 334,438.56 : x
  2. Step 2: Convert to fraction form
    495,365.54/683,813.70 = 334,438.56/x
  3. Step 3: Cross multiply
    495,365.54x = 683,813.70 × 334,438.56
  4. Step 4: Simplify right side
    495,365.54x = 228,693,669,136.27
  5. Step 5: Solve for x
    x = 228,693,669,136.27/495,365.54
  6. Step 6: Final answer
    x = 461,666.49

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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.