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Finding the Fourth Proportional to 604,477,600.80, 906,716,401.20 and 221,475,386.40

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Solution

The fourth proportional to 604,477,600.80, 906,716,401.20 and 221,475,386.40 is: 332,213,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,477,600.80 : 906,716,401.20 = 221,475,386.40 : x
  2. Step 2: Convert to fraction form
    604,477,600.80/906,716,401.20 = 221,475,386.40/x
  3. Step 3: Cross multiply
    604,477,600.80x = 906,716,401.20 × 221,475,386.40
  4. Step 4: Simplify right side
    604,477,600.80x = 200,815,365,310,987,424
  5. Step 5: Solve for x
    x = 200,815,365,310,987,424/604,477,600.80
  6. Step 6: Final answer
    x = 332,213,079.60

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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.