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Finding the Fourth Proportional to 626,486,541.60, 939,729,812.40 and 533,771,738.40

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Solution

The fourth proportional to 626,486,541.60, 939,729,812.40 and 533,771,738.40 is: 800,657,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,486,541.60 : 939,729,812.40 = 533,771,738.40 : x
  2. Step 2: Convert to fraction form
    626,486,541.60/939,729,812.40 = 533,771,738.40/x
  3. Step 3: Cross multiply
    626,486,541.60x = 939,729,812.40 × 533,771,738.40
  4. Step 4: Simplify right side
    626,486,541.60x = 501,601,215,591,053,824
  5. Step 5: Solve for x
    x = 501,601,215,591,053,824/626,486,541.60
  6. Step 6: Final answer
    x = 800,657,607.60

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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.