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Finding the Fourth Proportional to 662,140.40, 995,284.20 and 649,698.80

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Solution

The fourth proportional to 662,140.40, 995,284.20 and 649,698.80 is: 976,582.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,140.40 : 995,284.20 = 649,698.80 : x
  2. Step 2: Convert to fraction form
    662,140.40/995,284.20 = 649,698.80/x
  3. Step 3: Cross multiply
    662,140.40x = 995,284.20 × 649,698.80
  4. Step 4: Simplify right side
    662,140.40x = 646,634,950,398.96
  5. Step 5: Solve for x
    x = 646,634,950,398.96/662,140.40
  6. Step 6: Final answer
    x = 976,582.84

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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.