Home / 1,111,344.56-1,666,822.64-312,436.32

Finding the Fourth Proportional to 1,111,344.56, 1,666,822.64 and 312,436.32

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Solution

The fourth proportional to 1,111,344.56, 1,666,822.64 and 312,436.32 is: 468,599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,344.56 : 1,666,822.64 = 312,436.32 : x
  2. Step 2: Convert to fraction form
    1,111,344.56/1,666,822.64 = 312,436.32/x
  3. Step 3: Cross multiply
    1,111,344.56x = 1,666,822.64 × 312,436.32
  4. Step 4: Simplify right side
    1,111,344.56x = 520,775,931,734.29
  5. Step 5: Solve for x
    x = 520,775,931,734.29/1,111,344.56
  6. Step 6: Final answer
    x = 468,599.88

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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.