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Finding the Fourth Proportional to 659,616.96, 910,271.70 and 373,130.94

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Solution

The fourth proportional to 659,616.96, 910,271.70 and 373,130.94 is: 514,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,616.96 : 910,271.70 = 373,130.94 : x
  2. Step 2: Convert to fraction form
    659,616.96/910,271.70 = 373,130.94/x
  3. Step 3: Cross multiply
    659,616.96x = 910,271.70 × 373,130.94
  4. Step 4: Simplify right side
    659,616.96x = 339,650,535,076.40
  5. Step 5: Solve for x
    x = 339,650,535,076.40/659,616.96
  6. Step 6: Final answer
    x = 514,920.86

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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.