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Finding the Fourth Proportional to 575,687.80, 863,531.70 and 176,325.40

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Solution

The fourth proportional to 575,687.80, 863,531.70 and 176,325.40 is: 264,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,687.80 : 863,531.70 = 176,325.40 : x
  2. Step 2: Convert to fraction form
    575,687.80/863,531.70 = 176,325.40/x
  3. Step 3: Cross multiply
    575,687.80x = 863,531.70 × 176,325.40
  4. Step 4: Simplify right side
    575,687.80x = 152,262,572,415.18
  5. Step 5: Solve for x
    x = 152,262,572,415.18/575,687.80
  6. Step 6: Final answer
    x = 264,488.10

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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.