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Finding the Fourth Proportional to 1,167,981.95, 1,611,769.86 and 651,709.01

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Solution

The fourth proportional to 1,167,981.95, 1,611,769.86 and 651,709.01 is: 899,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,981.95 : 1,611,769.86 = 651,709.01 : x
  2. Step 2: Convert to fraction form
    1,167,981.95/1,611,769.86 = 651,709.01/x
  3. Step 3: Cross multiply
    1,167,981.95x = 1,611,769.86 × 651,709.01
  4. Step 4: Simplify right side
    1,167,981.95x = 1,050,404,943,837.86
  5. Step 5: Solve for x
    x = 1,050,404,943,837.86/1,167,981.95
  6. Step 6: Final answer
    x = 899,333.20

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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.