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Finding the Fourth Proportional to 1,793,912,461.60, 2,688,955,504.80 and 688,090,028.80

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Solution

The fourth proportional to 1,793,912,461.60, 2,688,955,504.80 and 688,090,028.80 is: 1,031,401,202.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,793,912,461.60 : 2,688,955,504.80 = 688,090,028.80 : x
  2. Step 2: Convert to fraction form
    1,793,912,461.60/2,688,955,504.80 = 688,090,028.80/x
  3. Step 3: Cross multiply
    1,793,912,461.60x = 2,688,955,504.80 × 688,090,028.80
  4. Step 4: Simplify right side
    1,793,912,461.60x = 1,850,243,470,739,750,656
  5. Step 5: Solve for x
    x = 1,850,243,470,739,750,656/1,793,912,461.60
  6. Step 6: Final answer
    x = 1,031,401,202.87

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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.