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Finding the Third Proportional to 877,986,781.50 and 1,292,729,024.50

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Solution

The third proportional to 877,986,781.50 and 1,292,729,024.50 is: 1,903,386,663.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,986,781.50 : 1,292,729,024.50 = 1,292,729,024.50 : x
  2. Step 2: Convert to fraction form
    877,986,781.50/1,292,729,024.50 = 1,292,729,024.50/x
  3. Step 3: Cross multiply
    877,986,781.50x = 1,292,729,024.50 × 1,292,729,024.50
  4. Step 4: Simplify right side
    877,986,781.50x = 1,671,148,330,784,721,664
  5. Step 5: Solve for x
    x = 1,671,148,330,784,721,664/877,986,781.50
  6. Step 6: Final answer
    x = 1,903,386,663.67

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.