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Finding the Fourth Proportional to 662,975.80, 995,330.94 and 393,595.72

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Solution

The fourth proportional to 662,975.80, 995,330.94 and 393,595.72 is: 590,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,975.80 : 995,330.94 = 393,595.72 : x
  2. Step 2: Convert to fraction form
    662,975.80/995,330.94 = 393,595.72/x
  3. Step 3: Cross multiply
    662,975.80x = 995,330.94 × 393,595.72
  4. Step 4: Simplify right side
    662,975.80x = 391,757,997,967.58
  5. Step 5: Solve for x
    x = 391,757,997,967.58/662,975.80
  6. Step 6: Final answer
    x = 590,908.44

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Double scale
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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.