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Finding the Fourth Proportional to 716,935.32, 988,818.12 and 445,164.12

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Solution

The fourth proportional to 716,935.32, 988,818.12 and 445,164.12 is: 613,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,935.32 : 988,818.12 = 445,164.12 : x
  2. Step 2: Convert to fraction form
    716,935.32/988,818.12 = 445,164.12/x
  3. Step 3: Cross multiply
    716,935.32x = 988,818.12 × 445,164.12
  4. Step 4: Simplify right side
    716,935.32x = 440,186,348,229.85
  5. Step 5: Solve for x
    x = 440,186,348,229.85/716,935.32
  6. Step 6: Final answer
    x = 613,983.35

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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.