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Finding the Fourth Proportional to 1,191,909,514.06, 1,644,822,076.55 and 656,049,722.28

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Solution

The fourth proportional to 1,191,909,514.06, 1,644,822,076.55 and 656,049,722.28 is: 905,341,432.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,909,514.06 : 1,644,822,076.55 = 656,049,722.28 : x
  2. Step 2: Convert to fraction form
    1,191,909,514.06/1,644,822,076.55 = 656,049,722.28/x
  3. Step 3: Cross multiply
    1,191,909,514.06x = 1,644,822,076.55 × 656,049,722.28
  4. Step 4: Simplify right side
    1,191,909,514.06x = 1,079,085,066,520,640,384
  5. Step 5: Solve for x
    x = 1,079,085,066,520,640,384/1,191,909,514.06
  6. Step 6: Final answer
    x = 905,341,432.21

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Double scale
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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.