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Finding the Fourth Proportional to 524,816.80, 786,058.80 and 406,103.20

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Solution

The fourth proportional to 524,816.80, 786,058.80 and 406,103.20 is: 608,252.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,816.80 : 786,058.80 = 406,103.20 : x
  2. Step 2: Convert to fraction form
    524,816.80/786,058.80 = 406,103.20/x
  3. Step 3: Cross multiply
    524,816.80x = 786,058.80 × 406,103.20
  4. Step 4: Simplify right side
    524,816.80x = 319,220,994,068.16
  5. Step 5: Solve for x
    x = 319,220,994,068.16/524,816.80
  6. Step 6: Final answer
    x = 608,252.24

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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.