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Finding the Fourth Proportional to 885,342,173.60, 1,328,013,260.40 and 873,248,938.40

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Solution

The fourth proportional to 885,342,173.60, 1,328,013,260.40 and 873,248,938.40 is: 1,309,873,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,342,173.60 : 1,328,013,260.40 = 873,248,938.40 : x
  2. Step 2: Convert to fraction form
    885,342,173.60/1,328,013,260.40 = 873,248,938.40/x
  3. Step 3: Cross multiply
    885,342,173.60x = 1,328,013,260.40 × 873,248,938.40
  4. Step 4: Simplify right side
    885,342,173.60x = 1,159,686,169,825,422,848
  5. Step 5: Solve for x
    x = 1,159,686,169,825,422,848/885,342,173.60
  6. Step 6: Final answer
    x = 1,309,873,407.60

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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.