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Finding the Fourth Proportional to 607,547.40, 911,321.10 and 186,768.60

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Solution

The fourth proportional to 607,547.40, 911,321.10 and 186,768.60 is: 280,152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,547.40 : 911,321.10 = 186,768.60 : x
  2. Step 2: Convert to fraction form
    607,547.40/911,321.10 = 186,768.60/x
  3. Step 3: Cross multiply
    607,547.40x = 911,321.10 × 186,768.60
  4. Step 4: Simplify right side
    607,547.40x = 170,206,165,997.46
  5. Step 5: Solve for x
    x = 170,206,165,997.46/607,547.40
  6. Step 6: Final answer
    x = 280,152.90

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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.