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Finding the Fourth Proportional to 517,799.70, 714,497.49 and 291,401.46

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Solution

The fourth proportional to 517,799.70, 714,497.49 and 291,401.46 is: 402,096.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,799.70 : 714,497.49 = 291,401.46 : x
  2. Step 2: Convert to fraction form
    517,799.70/714,497.49 = 291,401.46/x
  3. Step 3: Cross multiply
    517,799.70x = 714,497.49 × 291,401.46
  4. Step 4: Simplify right side
    517,799.70x = 208,205,611,752.34
  5. Step 5: Solve for x
    x = 208,205,611,752.34/517,799.70
  6. Step 6: Final answer
    x = 402,096.82

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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.