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Finding the Fourth Proportional to 1,330,663,068.74, 1,836,240,647.82 and 727,714,615.34

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Solution

The fourth proportional to 1,330,663,068.74, 1,836,240,647.82 and 727,714,615.34 is: 1,004,205,488.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,663,068.74 : 1,836,240,647.82 = 727,714,615.34 : x
  2. Step 2: Convert to fraction form
    1,330,663,068.74/1,836,240,647.82 = 727,714,615.34/x
  3. Step 3: Cross multiply
    1,330,663,068.74x = 1,836,240,647.82 × 727,714,615.34
  4. Step 4: Simplify right side
    1,330,663,068.74x = 1,336,259,156,700,003,840
  5. Step 5: Solve for x
    x = 1,336,259,156,700,003,840/1,330,663,068.74
  6. Step 6: Final answer
    x = 1,004,205,488.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.