Home / 1,210,841.60-1,670,953.55-666,964.76

Finding the Fourth Proportional to 1,210,841.60, 1,670,953.55 and 666,964.76

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Solution

The fourth proportional to 1,210,841.60, 1,670,953.55 and 666,964.76 is: 920,407.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,841.60 : 1,670,953.55 = 666,964.76 : x
  2. Step 2: Convert to fraction form
    1,210,841.60/1,670,953.55 = 666,964.76/x
  3. Step 3: Cross multiply
    1,210,841.60x = 1,670,953.55 × 666,964.76
  4. Step 4: Simplify right side
    1,210,841.60x = 1,114,467,121,757.31
  5. Step 5: Solve for x
    x = 1,114,467,121,757.31/1,210,841.60
  6. Step 6: Final answer
    x = 920,407.03

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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.