Home / 1,666,720.65-2,300,066.51-931,674.77

Finding the Fourth Proportional to 1,666,720.65, 2,300,066.51 and 931,674.77

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Solution

The fourth proportional to 1,666,720.65, 2,300,066.51 and 931,674.77 is: 1,285,706.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666,720.65 : 2,300,066.51 = 931,674.77 : x
  2. Step 2: Convert to fraction form
    1,666,720.65/2,300,066.51 = 931,674.77/x
  3. Step 3: Cross multiply
    1,666,720.65x = 2,300,066.51 × 931,674.77
  4. Step 4: Simplify right side
    1,666,720.65x = 2,142,913,920,530.25
  5. Step 5: Solve for x
    x = 2,142,913,920,530.25/1,666,720.65
  6. Step 6: Final answer
    x = 1,285,706.71

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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.