Home / 648,619,134.17-974,480,837.25-415,905,784.16

Finding the Fourth Proportional to 648,619,134.17, 974,480,837.25 and 415,905,784.16

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Solution

The fourth proportional to 648,619,134.17, 974,480,837.25 and 415,905,784.16 is: 624,853,932.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,619,134.17 : 974,480,837.25 = 415,905,784.16 : x
  2. Step 2: Convert to fraction form
    648,619,134.17/974,480,837.25 = 415,905,784.16/x
  3. Step 3: Cross multiply
    648,619,134.17x = 974,480,837.25 × 415,905,784.16
  4. Step 4: Simplify right side
    648,619,134.17x = 405,292,216,762,576,832
  5. Step 5: Solve for x
    x = 405,292,216,762,576,832/648,619,134.17
  6. Step 6: Final answer
    x = 624,853,932.63

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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.