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Finding the Fourth Proportional to 868,581,095.40, 1,301,436,752.40 and 739,440,932.40

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Solution

The fourth proportional to 868,581,095.40, 1,301,436,752.40 and 739,440,932.40 is: 1,107,939,846.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,581,095.40 : 1,301,436,752.40 = 739,440,932.40 : x
  2. Step 2: Convert to fraction form
    868,581,095.40/1,301,436,752.40 = 739,440,932.40/x
  3. Step 3: Cross multiply
    868,581,095.40x = 1,301,436,752.40 × 739,440,932.40
  4. Step 4: Simplify right side
    868,581,095.40x = 962,335,605,654,284,032
  5. Step 5: Solve for x
    x = 962,335,605,654,284,032/868,581,095.40
  6. Step 6: Final answer
    x = 1,107,939,846.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.