Home / 631,230,709.17-871,125,280.98-352,772,224.50

Finding the Fourth Proportional to 631,230,709.17, 871,125,280.98 and 352,772,224.50

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Solution

The fourth proportional to 631,230,709.17, 871,125,280.98 and 352,772,224.50 is: 486,840,704.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,230,709.17 : 871,125,280.98 = 352,772,224.50 : x
  2. Step 2: Convert to fraction form
    631,230,709.17/871,125,280.98 = 352,772,224.50/x
  3. Step 3: Cross multiply
    631,230,709.17x = 871,125,280.98 × 352,772,224.50
  4. Step 4: Simplify right side
    631,230,709.17x = 307,308,803,189,502,144
  5. Step 5: Solve for x
    x = 307,308,803,189,502,144/631,230,709.17
  6. Step 6: Final answer
    x = 486,840,704.56

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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.