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Finding the Fourth Proportional to 1,254,784.92, 1,731,614.16 and 681,825.10

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Solution

The fourth proportional to 1,254,784.92, 1,731,614.16 and 681,825.10 is: 940,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,784.92 : 1,731,614.16 = 681,825.10 : x
  2. Step 2: Convert to fraction form
    1,254,784.92/1,731,614.16 = 681,825.10/x
  3. Step 3: Cross multiply
    1,254,784.92x = 1,731,614.16 × 681,825.10
  4. Step 4: Simplify right side
    1,254,784.92x = 1,180,657,997,803.42
  5. Step 5: Solve for x
    x = 1,180,657,997,803.42/1,254,784.92
  6. Step 6: Final answer
    x = 940,924.60

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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.