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Finding the Fourth Proportional to 607,528.40, 911,292.60 and 181,063.40

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Solution

The fourth proportional to 607,528.40, 911,292.60 and 181,063.40 is: 271,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,528.40 : 911,292.60 = 181,063.40 : x
  2. Step 2: Convert to fraction form
    607,528.40/911,292.60 = 181,063.40/x
  3. Step 3: Cross multiply
    607,528.40x = 911,292.60 × 181,063.40
  4. Step 4: Simplify right side
    607,528.40x = 165,001,736,550.84
  5. Step 5: Solve for x
    x = 165,001,736,550.84/607,528.40
  6. Step 6: Final answer
    x = 271,595.10

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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.