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Finding the Fourth Proportional to 562,682.70, 776,500.83 and 308,031.66

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Solution

The fourth proportional to 562,682.70, 776,500.83 and 308,031.66 is: 425,082.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,682.70 : 776,500.83 = 308,031.66 : x
  2. Step 2: Convert to fraction form
    562,682.70/776,500.83 = 308,031.66/x
  3. Step 3: Cross multiply
    562,682.70x = 776,500.83 × 308,031.66
  4. Step 4: Simplify right side
    562,682.70x = 239,186,839,656.28
  5. Step 5: Solve for x
    x = 239,186,839,656.28/562,682.70
  6. Step 6: Final answer
    x = 425,082.98

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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.