Home / 684,802.09-945,329.55-409,257.14

Finding the Fourth Proportional to 684,802.09, 945,329.55 and 409,257.14

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Solution

The fourth proportional to 684,802.09, 945,329.55 and 409,257.14 is: 564,955.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,802.09 : 945,329.55 = 409,257.14 : x
  2. Step 2: Convert to fraction form
    684,802.09/945,329.55 = 409,257.14/x
  3. Step 3: Cross multiply
    684,802.09x = 945,329.55 × 409,257.14
  4. Step 4: Simplify right side
    684,802.09x = 386,882,870,353.81
  5. Step 5: Solve for x
    x = 386,882,870,353.81/684,802.09
  6. Step 6: Final answer
    x = 564,955.74

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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.