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Finding the Fourth Proportional to 550,490,676.90, 825,736,015.35 and 186,985,032.90

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Solution

The fourth proportional to 550,490,676.90, 825,736,015.35 and 186,985,032.90 is: 280,477,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,490,676.90 : 825,736,015.35 = 186,985,032.90 : x
  2. Step 2: Convert to fraction form
    550,490,676.90/825,736,015.35 = 186,985,032.90/x
  3. Step 3: Cross multiply
    550,490,676.90x = 825,736,015.35 × 186,985,032.90
  4. Step 4: Simplify right side
    550,490,676.90x = 154,400,275,996,934,656
  5. Step 5: Solve for x
    x = 154,400,275,996,934,656/550,490,676.90
  6. Step 6: Final answer
    x = 280,477,549.35

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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.