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Finding the Third Proportional to 288,116,859.94 and 619,931,944.13

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Solution

The third proportional to 288,116,859.94 and 619,931,944.13 is: 1,333,887,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,116,859.94 : 619,931,944.13 = 619,931,944.13 : x
  2. Step 2: Convert to fraction form
    288,116,859.94/619,931,944.13 = 619,931,944.13/x
  3. Step 3: Cross multiply
    288,116,859.94x = 619,931,944.13 × 619,931,944.13
  4. Step 4: Simplify right side
    288,116,859.94x = 384,315,615,346,602,112
  5. Step 5: Solve for x
    x = 384,315,615,346,602,112/288,116,859.94
  6. Step 6: Final answer
    x = 1,333,887,976.67

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.