Home / 385,542.40-532,048.44-215,776.53

Finding the Fourth Proportional to 385,542.40, 532,048.44 and 215,776.53

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Solution

The fourth proportional to 385,542.40, 532,048.44 and 215,776.53 is: 297,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,542.40 : 532,048.44 = 215,776.53 : x
  2. Step 2: Convert to fraction form
    385,542.40/532,048.44 = 215,776.53/x
  3. Step 3: Cross multiply
    385,542.40x = 532,048.44 × 215,776.53
  4. Step 4: Simplify right side
    385,542.40x = 114,803,566,175.11
  5. Step 5: Solve for x
    x = 114,803,566,175.11/385,542.40
  6. Step 6: Final answer
    x = 297,771.57

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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.