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Finding the Fourth Proportional to 670,710,869.84, 925,571,518.80 and 377,354,738

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Solution

The fourth proportional to 670,710,869.84, 925,571,518.80 and 377,354,738 is: 520,744,203.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,710,869.84 : 925,571,518.80 = 377,354,738 : x
  2. Step 2: Convert to fraction form
    670,710,869.84/925,571,518.80 = 377,354,738/x
  3. Step 3: Cross multiply
    670,710,869.84x = 925,571,518.80 × 377,354,738
  4. Step 4: Simplify right side
    670,710,869.84x = 349,268,797,977,036,032
  5. Step 5: Solve for x
    x = 349,268,797,977,036,032/670,710,869.84
  6. Step 6: Final answer
    x = 520,744,203.92

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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.