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Finding the Fourth Proportional to 1,256,952,903.74, 1,734,648,768.87 and 700,035,861.50

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Solution

The fourth proportional to 1,256,952,903.74, 1,734,648,768.87 and 700,035,861.50 is: 966,079,430.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,952,903.74 : 1,734,648,768.87 = 700,035,861.50 : x
  2. Step 2: Convert to fraction form
    1,256,952,903.74/1,734,648,768.87 = 700,035,861.50/x
  3. Step 3: Cross multiply
    1,256,952,903.74x = 1,734,648,768.87 × 700,035,861.50
  4. Step 4: Simplify right side
    1,256,952,903.74x = 1,214,316,345,315,824,640
  5. Step 5: Solve for x
    x = 1,214,316,345,315,824,640/1,256,952,903.74
  6. Step 6: Final answer
    x = 966,079,430.42

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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.