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Finding the Fourth Proportional to 495,562.43, 683,818.11 and 291,568.47

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Solution

The fourth proportional to 495,562.43, 683,818.11 and 291,568.47 is: 402,330.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,562.43 : 683,818.11 = 291,568.47 : x
  2. Step 2: Convert to fraction form
    495,562.43/683,818.11 = 291,568.47/x
  3. Step 3: Cross multiply
    495,562.43x = 683,818.11 × 291,568.47
  4. Step 4: Simplify right side
    495,562.43x = 199,379,800,090.99
  5. Step 5: Solve for x
    x = 199,379,800,090.99/495,562.43
  6. Step 6: Final answer
    x = 402,330.34

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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.