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Finding the Fourth Proportional to 845,280,825.60, 1,180,974,508.80 and 845,280,825.60

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Solution

The fourth proportional to 845,280,825.60, 1,180,974,508.80 and 845,280,825.60 is: 1,180,974,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,280,825.60 : 1,180,974,508.80 = 845,280,825.60 : x
  2. Step 2: Convert to fraction form
    845,280,825.60/1,180,974,508.80 = 845,280,825.60/x
  3. Step 3: Cross multiply
    845,280,825.60x = 1,180,974,508.80 × 845,280,825.60
  4. Step 4: Simplify right side
    845,280,825.60x = 998,255,107,811,018,496
  5. Step 5: Solve for x
    x = 998,255,107,811,018,496/845,280,825.60
  6. Step 6: Final answer
    x = 1,180,974,508.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.