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Finding the Fourth Proportional to 607,613.40, 838,557.36 and 352,949.40

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Solution

The fourth proportional to 607,613.40, 838,557.36 and 352,949.40 is: 487,099.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,613.40 : 838,557.36 = 352,949.40 : x
  2. Step 2: Convert to fraction form
    607,613.40/838,557.36 = 352,949.40/x
  3. Step 3: Cross multiply
    607,613.40x = 838,557.36 × 352,949.40
  4. Step 4: Simplify right side
    607,613.40x = 295,968,317,077.58
  5. Step 5: Solve for x
    x = 295,968,317,077.58/607,613.40
  6. Step 6: Final answer
    x = 487,099.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.