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Finding the Fourth Proportional to 696,322,457.72, 960,894,695.58 and 383,036,807.24

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Solution

The fourth proportional to 696,322,457.72, 960,894,695.58 and 383,036,807.24 is: 528,574,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,322,457.72 : 960,894,695.58 = 383,036,807.24 : x
  2. Step 2: Convert to fraction form
    696,322,457.72/960,894,695.58 = 383,036,807.24/x
  3. Step 3: Cross multiply
    696,322,457.72x = 960,894,695.58 × 383,036,807.24
  4. Step 4: Simplify right side
    696,322,457.72x = 368,058,036,288,814,976
  5. Step 5: Solve for x
    x = 368,058,036,288,814,976/696,322,457.72
  6. Step 6: Final answer
    x = 528,574,128.56

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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.