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Finding the Fourth Proportional to 648,051.40, 972,077.10 and 541,763.20

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Solution

The fourth proportional to 648,051.40, 972,077.10 and 541,763.20 is: 812,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,051.40 : 972,077.10 = 541,763.20 : x
  2. Step 2: Convert to fraction form
    648,051.40/972,077.10 = 541,763.20/x
  3. Step 3: Cross multiply
    648,051.40x = 972,077.10 × 541,763.20
  4. Step 4: Simplify right side
    648,051.40x = 526,635,600,342.72
  5. Step 5: Solve for x
    x = 526,635,600,342.72/648,051.40
  6. Step 6: Final answer
    x = 812,644.80

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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.