Home / 684,865-945,117.38-383,058.92

Finding the Fourth Proportional to 684,865, 945,117.38 and 383,058.92

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Solution

The fourth proportional to 684,865, 945,117.38 and 383,058.92 is: 528,623.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,865 : 945,117.38 = 383,058.92 : x
  2. Step 2: Convert to fraction form
    684,865/945,117.38 = 383,058.92/x
  3. Step 3: Cross multiply
    684,865x = 945,117.38 × 383,058.92
  4. Step 4: Simplify right side
    684,865x = 362,035,642,856.03
  5. Step 5: Solve for x
    x = 362,035,642,856.03/684,865
  6. Step 6: Final answer
    x = 528,623.37

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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.