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Finding the Fourth Proportional to 607,355.40, 911,054.70 and 186,630.60

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Solution

The fourth proportional to 607,355.40, 911,054.70 and 186,630.60 is: 279,952.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,355.40 : 911,054.70 = 186,630.60 : x
  2. Step 2: Convert to fraction form
    607,355.40/911,054.70 = 186,630.60/x
  3. Step 3: Cross multiply
    607,355.40x = 911,054.70 × 186,630.60
  4. Step 4: Simplify right side
    607,355.40x = 170,030,685,293.82
  5. Step 5: Solve for x
    x = 170,030,685,293.82/607,355.40
  6. Step 6: Final answer
    x = 279,952.54

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1.5x scale

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.