Home / 769,552.96-1,061,981.40-430,021.20

Finding the Fourth Proportional to 769,552.96, 1,061,981.40 and 430,021.20

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Solution

The fourth proportional to 769,552.96, 1,061,981.40 and 430,021.20 is: 593,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,552.96 : 1,061,981.40 = 430,021.20 : x
  2. Step 2: Convert to fraction form
    769,552.96/1,061,981.40 = 430,021.20/x
  3. Step 3: Cross multiply
    769,552.96x = 1,061,981.40 × 430,021.20
  4. Step 4: Simplify right side
    769,552.96x = 456,674,516,005.68
  5. Step 5: Solve for x
    x = 456,674,516,005.68/769,552.96
  6. Step 6: Final answer
    x = 593,428.31

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Double scale
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1.5x scale

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.