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Finding the Fourth Proportional to 577,111.80, 865,667.70 and 535,121.40

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Solution

The fourth proportional to 577,111.80, 865,667.70 and 535,121.40 is: 802,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,111.80 : 865,667.70 = 535,121.40 : x
  2. Step 2: Convert to fraction form
    577,111.80/865,667.70 = 535,121.40/x
  3. Step 3: Cross multiply
    577,111.80x = 865,667.70 × 535,121.40
  4. Step 4: Simplify right side
    577,111.80x = 463,237,311,558.78
  5. Step 5: Solve for x
    x = 463,237,311,558.78/577,111.80
  6. Step 6: Final answer
    x = 802,682.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.