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Finding the Fourth Proportional to 851,789,360.44, 1,175,472,859.62 and 460,648,784.44

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Solution

The fourth proportional to 851,789,360.44, 1,175,472,859.62 and 460,648,784.44 is: 635,697,238.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,789,360.44 : 1,175,472,859.62 = 460,648,784.44 : x
  2. Step 2: Convert to fraction form
    851,789,360.44/1,175,472,859.62 = 460,648,784.44/x
  3. Step 3: Cross multiply
    851,789,360.44x = 1,175,472,859.62 × 460,648,784.44
  4. Step 4: Simplify right side
    851,789,360.44x = 541,480,143,926,163,712
  5. Step 5: Solve for x
    x = 541,480,143,926,163,712/851,789,360.44
  6. Step 6: Final answer
    x = 635,697,238.16

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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.