Home / 1,284,344.76-1,772,395.72-711,421.84

Finding the Fourth Proportional to 1,284,344.76, 1,772,395.72 and 711,421.84

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Solution

The fourth proportional to 1,284,344.76, 1,772,395.72 and 711,421.84 is: 981,762.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,344.76 : 1,772,395.72 = 711,421.84 : x
  2. Step 2: Convert to fraction form
    1,284,344.76/1,772,395.72 = 711,421.84/x
  3. Step 3: Cross multiply
    1,284,344.76x = 1,772,395.72 × 711,421.84
  4. Step 4: Simplify right side
    1,284,344.76x = 1,260,921,024,330.52
  5. Step 5: Solve for x
    x = 1,260,921,024,330.52/1,284,344.76
  6. Step 6: Final answer
    x = 981,762.11

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Double scale
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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.