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Finding the Fourth Proportional to 1,933,981.24, 2,900,971.86 and 671,810.08

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Solution

The fourth proportional to 1,933,981.24, 2,900,971.86 and 671,810.08 is: 1,007,715.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933,981.24 : 2,900,971.86 = 671,810.08 : x
  2. Step 2: Convert to fraction form
    1,933,981.24/2,900,971.86 = 671,810.08/x
  3. Step 3: Cross multiply
    1,933,981.24x = 2,900,971.86 × 671,810.08
  4. Step 4: Simplify right side
    1,933,981.24x = 1,948,902,137,344.35
  5. Step 5: Solve for x
    x = 1,948,902,137,344.35/1,933,981.24
  6. Step 6: Final answer
    x = 1,007,715.12

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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.