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Finding the Fourth Proportional to 897,601.95, 1,239,505.64 and 668,075.39

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Solution

The fourth proportional to 897,601.95, 1,239,505.64 and 668,075.39 is: 922,550.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,601.95 : 1,239,505.64 = 668,075.39 : x
  2. Step 2: Convert to fraction form
    897,601.95/1,239,505.64 = 668,075.39/x
  3. Step 3: Cross multiply
    897,601.95x = 1,239,505.64 × 668,075.39
  4. Step 4: Simplify right side
    897,601.95x = 828,083,211,465.72
  5. Step 5: Solve for x
    x = 828,083,211,465.72/897,601.95
  6. Step 6: Final answer
    x = 922,550.59

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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.