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Finding the Fourth Proportional to 434,485.20, 651,695.40 and 181,700.40

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Solution

The fourth proportional to 434,485.20, 651,695.40 and 181,700.40 is: 272,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,485.20 : 651,695.40 = 181,700.40 : x
  2. Step 2: Convert to fraction form
    434,485.20/651,695.40 = 181,700.40/x
  3. Step 3: Cross multiply
    434,485.20x = 651,695.40 × 181,700.40
  4. Step 4: Simplify right side
    434,485.20x = 118,413,314,858.16
  5. Step 5: Solve for x
    x = 118,413,314,858.16/434,485.20
  6. Step 6: Final answer
    x = 272,537.05

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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.