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Finding the Fourth Proportional to 805,798,556.60, 1,208,697,834.90 and 560,910,543.80

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Solution

The fourth proportional to 805,798,556.60, 1,208,697,834.90 and 560,910,543.80 is: 841,365,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,798,556.60 : 1,208,697,834.90 = 560,910,543.80 : x
  2. Step 2: Convert to fraction form
    805,798,556.60/1,208,697,834.90 = 560,910,543.80/x
  3. Step 3: Cross multiply
    805,798,556.60x = 1,208,697,834.90 × 560,910,543.80
  4. Step 4: Simplify right side
    805,798,556.60x = 677,971,359,863,641,600
  5. Step 5: Solve for x
    x = 677,971,359,863,641,600/805,798,556.60
  6. Step 6: Final answer
    x = 841,365,815.70

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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.