Home / 578,323.19-865,919.86-409,146.59

Finding the Fourth Proportional to 578,323.19, 865,919.86 and 409,146.59

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Solution

The fourth proportional to 578,323.19, 865,919.86 and 409,146.59 is: 612,612.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,323.19 : 865,919.86 = 409,146.59 : x
  2. Step 2: Convert to fraction form
    578,323.19/865,919.86 = 409,146.59/x
  3. Step 3: Cross multiply
    578,323.19x = 865,919.86 × 409,146.59
  4. Step 4: Simplify right side
    578,323.19x = 354,288,152,579.81
  5. Step 5: Solve for x
    x = 354,288,152,579.81/578,323.19
  6. Step 6: Final answer
    x = 612,612.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.