Home / 661,825,762.30-992,738,643.45-439,896,000.70

Finding the Fourth Proportional to 661,825,762.30, 992,738,643.45 and 439,896,000.70

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Solution

The fourth proportional to 661,825,762.30, 992,738,643.45 and 439,896,000.70 is: 659,844,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,825,762.30 : 992,738,643.45 = 439,896,000.70 : x
  2. Step 2: Convert to fraction form
    661,825,762.30/992,738,643.45 = 439,896,000.70/x
  3. Step 3: Cross multiply
    661,825,762.30x = 992,738,643.45 × 439,896,000.70
  4. Step 4: Simplify right side
    661,825,762.30x = 436,701,758,993,998,272
  5. Step 5: Solve for x
    x = 436,701,758,993,998,272/661,825,762.30
  6. Step 6: Final answer
    x = 659,844,001.05

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Double scale
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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.