Home / 385,856.24-578,824.48-105,373.52

Finding the Fourth Proportional to 385,856.24, 578,824.48 and 105,373.52

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Solution

The fourth proportional to 385,856.24, 578,824.48 and 105,373.52 is: 158,071.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,856.24 : 578,824.48 = 105,373.52 : x
  2. Step 2: Convert to fraction form
    385,856.24/578,824.48 = 105,373.52/x
  3. Step 3: Cross multiply
    385,856.24x = 578,824.48 × 105,373.52
  4. Step 4: Simplify right side
    385,856.24x = 60,992,772,919.77
  5. Step 5: Solve for x
    x = 60,992,772,919.77/385,856.24
  6. Step 6: Final answer
    x = 158,071.24

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1.5x scale

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.