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Finding the Fourth Proportional to 648,194.40, 972,291.60 and 577,335.60

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Solution

The fourth proportional to 648,194.40, 972,291.60 and 577,335.60 is: 866,003.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,194.40 : 972,291.60 = 577,335.60 : x
  2. Step 2: Convert to fraction form
    648,194.40/972,291.60 = 577,335.60/x
  3. Step 3: Cross multiply
    648,194.40x = 972,291.60 × 577,335.60
  4. Step 4: Simplify right side
    648,194.40x = 561,338,554,260.96
  5. Step 5: Solve for x
    x = 561,338,554,260.96/648,194.40
  6. Step 6: Final answer
    x = 866,003.40

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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.