Home / 1,111,345.56-1,666,824.14-312,437.32

Finding the Fourth Proportional to 1,111,345.56, 1,666,824.14 and 312,437.32

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Solution

The fourth proportional to 1,111,345.56, 1,666,824.14 and 312,437.32 is: 468,601.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,345.56 : 1,666,824.14 = 312,437.32 : x
  2. Step 2: Convert to fraction form
    1,111,345.56/1,666,824.14 = 312,437.32/x
  3. Step 3: Cross multiply
    1,111,345.56x = 1,666,824.14 × 312,437.32
  4. Step 4: Simplify right side
    1,111,345.56x = 520,778,067,212.91
  5. Step 5: Solve for x
    x = 520,778,067,212.91/1,111,345.56
  6. Step 6: Final answer
    x = 468,601.38

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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.