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Finding the Fourth Proportional to 608,632.80, 853,485.60 and 608,632.80

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Solution

The fourth proportional to 608,632.80, 853,485.60 and 608,632.80 is: 853,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,632.80 : 853,485.60 = 608,632.80 : x
  2. Step 2: Convert to fraction form
    608,632.80/853,485.60 = 608,632.80/x
  3. Step 3: Cross multiply
    608,632.80x = 853,485.60 × 608,632.80
  4. Step 4: Simplify right side
    608,632.80x = 519,459,330,487.68
  5. Step 5: Solve for x
    x = 519,459,330,487.68/608,632.80
  6. Step 6: Final answer
    x = 853,485.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.