Home / 385,544.40-532,051.20-215,778.53

Finding the Fourth Proportional to 385,544.40, 532,051.20 and 215,778.53

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Solution

The fourth proportional to 385,544.40, 532,051.20 and 215,778.53 is: 297,774.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,544.40 : 532,051.20 = 215,778.53 : x
  2. Step 2: Convert to fraction form
    385,544.40/532,051.20 = 215,778.53/x
  3. Step 3: Cross multiply
    385,544.40x = 532,051.20 × 215,778.53
  4. Step 4: Simplify right side
    385,544.40x = 114,805,225,820.74
  5. Step 5: Solve for x
    x = 114,805,225,820.74/385,544.40
  6. Step 6: Final answer
    x = 297,774.33

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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.