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Finding the Fourth Proportional to 940,031, 1,297,244.40 and 537,623

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Solution

The fourth proportional to 940,031, 1,297,244.40 and 537,623 is: 741,920.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,031 : 1,297,244.40 = 537,623 : x
  2. Step 2: Convert to fraction form
    940,031/1,297,244.40 = 537,623/x
  3. Step 3: Cross multiply
    940,031x = 1,297,244.40 × 537,623
  4. Step 4: Simplify right side
    940,031x = 697,428,426,061.20
  5. Step 5: Solve for x
    x = 697,428,426,061.20/940,031
  6. Step 6: Final answer
    x = 741,920.67

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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.