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Finding the Fourth Proportional to 648,176.40, 972,264.60 and 648,176.40

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Solution

The fourth proportional to 648,176.40, 972,264.60 and 648,176.40 is: 972,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,176.40 : 972,264.60 = 648,176.40 : x
  2. Step 2: Convert to fraction form
    648,176.40/972,264.60 = 648,176.40/x
  3. Step 3: Cross multiply
    648,176.40x = 972,264.60 × 648,176.40
  4. Step 4: Simplify right side
    648,176.40x = 630,198,968,275.44
  5. Step 5: Solve for x
    x = 630,198,968,275.44/648,176.40
  6. Step 6: Final answer
    x = 972,264.60

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Double scale
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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.