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Finding the Fourth Proportional to 558,153.54, 770,158.51 and 328,756.51

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Solution

The fourth proportional to 558,153.54, 770,158.51 and 328,756.51 is: 453,628.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,153.54 : 770,158.51 = 328,756.51 : x
  2. Step 2: Convert to fraction form
    558,153.54/770,158.51 = 328,756.51/x
  3. Step 3: Cross multiply
    558,153.54x = 770,158.51 × 328,756.51
  4. Step 4: Simplify right side
    558,153.54x = 253,194,623,894.40
  5. Step 5: Solve for x
    x = 253,194,623,894.40/558,153.54
  6. Step 6: Final answer
    x = 453,628.99

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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.