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Finding the Fourth Proportional to 646,938.60, 970,407.90 and 590,951.40

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Solution

The fourth proportional to 646,938.60, 970,407.90 and 590,951.40 is: 886,427.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,938.60 : 970,407.90 = 590,951.40 : x
  2. Step 2: Convert to fraction form
    646,938.60/970,407.90 = 590,951.40/x
  3. Step 3: Cross multiply
    646,938.60x = 970,407.90 × 590,951.40
  4. Step 4: Simplify right side
    646,938.60x = 573,463,907,076.06
  5. Step 5: Solve for x
    x = 573,463,907,076.06/646,938.60
  6. Step 6: Final answer
    x = 886,427.10

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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.