Home / 1,210,733.76-1,670,823.84-666,871.52

Finding the Fourth Proportional to 1,210,733.76, 1,670,823.84 and 666,871.52

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Solution

The fourth proportional to 1,210,733.76, 1,670,823.84 and 666,871.52 is: 920,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,733.76 : 1,670,823.84 = 666,871.52 : x
  2. Step 2: Convert to fraction form
    1,210,733.76/1,670,823.84 = 666,871.52/x
  3. Step 3: Cross multiply
    1,210,733.76x = 1,670,823.84 × 666,871.52
  4. Step 4: Simplify right side
    1,210,733.76x = 1,114,224,833,833.04
  5. Step 5: Solve for x
    x = 1,114,224,833,833.04/1,210,733.76
  6. Step 6: Final answer
    x = 920,288.89

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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.