Home / 569,639.28-786,086.66-314,981.76

Finding the Fourth Proportional to 569,639.28, 786,086.66 and 314,981.76

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Solution

The fourth proportional to 569,639.28, 786,086.66 and 314,981.76 is: 434,666.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,639.28 : 786,086.66 = 314,981.76 : x
  2. Step 2: Convert to fraction form
    569,639.28/786,086.66 = 314,981.76/x
  3. Step 3: Cross multiply
    569,639.28x = 786,086.66 × 314,981.76
  4. Step 4: Simplify right side
    569,639.28x = 247,602,959,679.32
  5. Step 5: Solve for x
    x = 247,602,959,679.32/569,639.28
  6. Step 6: Final answer
    x = 434,666.23

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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.