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Finding the Fourth Proportional to 524,124.80, 785,020.80 and 512,460.80

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Solution

The fourth proportional to 524,124.80, 785,020.80 and 512,460.80 is: 767,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,124.80 : 785,020.80 = 512,460.80 : x
  2. Step 2: Convert to fraction form
    524,124.80/785,020.80 = 512,460.80/x
  3. Step 3: Cross multiply
    524,124.80x = 785,020.80 × 512,460.80
  4. Step 4: Simplify right side
    524,124.80x = 402,292,387,184.64
  5. Step 5: Solve for x
    x = 402,292,387,184.64/524,124.80
  6. Step 6: Final answer
    x = 767,550.76

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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.