Home / 648,619,136.13-974,480,840.25-415,905,786.24

Finding the Fourth Proportional to 648,619,136.13, 974,480,840.25 and 415,905,786.24

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Solution

The fourth proportional to 648,619,136.13, 974,480,840.25 and 415,905,786.24 is: 624,853,935.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,619,136.13 : 974,480,840.25 = 415,905,786.24 : x
  2. Step 2: Convert to fraction form
    648,619,136.13/974,480,840.25 = 415,905,786.24/x
  3. Step 3: Cross multiply
    648,619,136.13x = 974,480,840.25 × 415,905,786.24
  4. Step 4: Simplify right side
    648,619,136.13x = 405,292,220,039,992,128
  5. Step 5: Solve for x
    x = 405,292,220,039,992,128/648,619,136.13
  6. Step 6: Final answer
    x = 624,853,935.79

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Double scale
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1.5x scale

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.