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Finding the Fourth Proportional to 707,278,275.54, 968,974,695 and 680,769,651.06

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Solution

The fourth proportional to 707,278,275.54, 968,974,695 and 680,769,651.06 is: 932,657,749.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,278,275.54 : 968,974,695 = 680,769,651.06 : x
  2. Step 2: Convert to fraction form
    707,278,275.54/968,974,695 = 680,769,651.06/x
  3. Step 3: Cross multiply
    707,278,275.54x = 968,974,695 × 680,769,651.06
  4. Step 4: Simplify right side
    707,278,275.54x = 659,648,565,001,119,872
  5. Step 5: Solve for x
    x = 659,648,565,001,119,872/707,278,275.54
  6. Step 6: Final answer
    x = 932,657,749.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.