Home / 699,841,483.44-965,810,587.80-402,483,957.78

Finding the Fourth Proportional to 699,841,483.44, 965,810,587.80 and 402,483,957.78

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Solution

The fourth proportional to 699,841,483.44, 965,810,587.80 and 402,483,957.78 is: 555,444,735.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,841,483.44 : 965,810,587.80 = 402,483,957.78 : x
  2. Step 2: Convert to fraction form
    699,841,483.44/965,810,587.80 = 402,483,957.78/x
  3. Step 3: Cross multiply
    699,841,483.44x = 965,810,587.80 × 402,483,957.78
  4. Step 4: Simplify right side
    699,841,483.44x = 388,723,267,843,572,160
  5. Step 5: Solve for x
    x = 388,723,267,843,572,160/699,841,483.44
  6. Step 6: Final answer
    x = 555,444,735.76

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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.