Home / 939,777,946.40-1,409,666,919.60-572,445,927.20

Finding the Fourth Proportional to 939,777,946.40, 1,409,666,919.60 and 572,445,927.20

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Solution

The fourth proportional to 939,777,946.40, 1,409,666,919.60 and 572,445,927.20 is: 858,668,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,777,946.40 : 1,409,666,919.60 = 572,445,927.20 : x
  2. Step 2: Convert to fraction form
    939,777,946.40/1,409,666,919.60 = 572,445,927.20/x
  3. Step 3: Cross multiply
    939,777,946.40x = 1,409,666,919.60 × 572,445,927.20
  4. Step 4: Simplify right side
    939,777,946.40x = 806,958,086,833,589,888
  5. Step 5: Solve for x
    x = 806,958,086,833,589,888/939,777,946.40
  6. Step 6: Final answer
    x = 858,668,890.80

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Double scale
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Similar ratio
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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.