Home / 977,662,920.36-1,349,200,400.40-531,652,369.06

Finding the Fourth Proportional to 977,662,920.36, 1,349,200,400.40 and 531,652,369.06

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Solution

The fourth proportional to 977,662,920.36, 1,349,200,400.40 and 531,652,369.06 is: 733,694,174.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,662,920.36 : 1,349,200,400.40 = 531,652,369.06 : x
  2. Step 2: Convert to fraction form
    977,662,920.36/1,349,200,400.40 = 531,652,369.06/x
  3. Step 3: Cross multiply
    977,662,920.36x = 1,349,200,400.40 × 531,652,369.06
  4. Step 4: Simplify right side
    977,662,920.36x = 717,305,589,211,033,600
  5. Step 5: Solve for x
    x = 717,305,589,211,033,600/977,662,920.36
  6. Step 6: Final answer
    x = 733,694,174.41

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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.