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Finding the Third Proportional to 289,145,871 and 440,498,373.75

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Solution

The third proportional to 289,145,871 and 440,498,373.75 is: 671,075,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,145,871 : 440,498,373.75 = 440,498,373.75 : x
  2. Step 2: Convert to fraction form
    289,145,871/440,498,373.75 = 440,498,373.75/x
  3. Step 3: Cross multiply
    289,145,871x = 440,498,373.75 × 440,498,373.75
  4. Step 4: Simplify right side
    289,145,871x = 194,038,817,276,394,688
  5. Step 5: Solve for x
    x = 194,038,817,276,394,688/289,145,871
  6. Step 6: Final answer
    x = 671,075,871.17

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.