Home / 1,400,323.60-1,931,668.50-917,667.28

Finding the Fourth Proportional to 1,400,323.60, 1,931,668.50 and 917,667.28

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Solution

The fourth proportional to 1,400,323.60, 1,931,668.50 and 917,667.28 is: 1,265,870.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,323.60 : 1,931,668.50 = 917,667.28 : x
  2. Step 2: Convert to fraction form
    1,400,323.60/1,931,668.50 = 917,667.28/x
  3. Step 3: Cross multiply
    1,400,323.60x = 1,931,668.50 × 917,667.28
  4. Step 4: Simplify right side
    1,400,323.60x = 1,772,628,978,256.68
  5. Step 5: Solve for x
    x = 1,772,628,978,256.68/1,400,323.60
  6. Step 6: Final answer
    x = 1,265,870.96

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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.