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Finding the Fourth Proportional to 648,193.60, 972,290.40 and 648,193.60

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Solution

The fourth proportional to 648,193.60, 972,290.40 and 648,193.60 is: 972,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,193.60 : 972,290.40 = 648,193.60 : x
  2. Step 2: Convert to fraction form
    648,193.60/972,290.40 = 648,193.60/x
  3. Step 3: Cross multiply
    648,193.60x = 972,290.40 × 648,193.60
  4. Step 4: Simplify right side
    648,193.60x = 630,232,414,621.44
  5. Step 5: Solve for x
    x = 630,232,414,621.44/648,193.60
  6. Step 6: Final answer
    x = 972,290.40

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Half scale
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Double scale
Find fourth proportional to 648,194.60, 972,291.90 and 648,194.60
Similar ratio
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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.