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Finding the Fourth Proportional to 817,856.16, 1,129,197 and 512,056.14

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Solution

The fourth proportional to 817,856.16, 1,129,197 and 512,056.14 is: 706,985.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,856.16 : 1,129,197 = 512,056.14 : x
  2. Step 2: Convert to fraction form
    817,856.16/1,129,197 = 512,056.14/x
  3. Step 3: Cross multiply
    817,856.16x = 1,129,197 × 512,056.14
  4. Step 4: Simplify right side
    817,856.16x = 578,212,257,119.58
  5. Step 5: Solve for x
    x = 578,212,257,119.58/817,856.16
  6. Step 6: Final answer
    x = 706,985.27

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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.