Home / 385,541.18-531,983.35-242,199.71

Finding the Fourth Proportional to 385,541.18, 531,983.35 and 242,199.71

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Solution

The fourth proportional to 385,541.18, 531,983.35 and 242,199.71 is: 334,195.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,541.18 : 531,983.35 = 242,199.71 : x
  2. Step 2: Convert to fraction form
    385,541.18/531,983.35 = 242,199.71/x
  3. Step 3: Cross multiply
    385,541.18x = 531,983.35 × 242,199.71
  4. Step 4: Simplify right side
    385,541.18x = 128,846,213,094.83
  5. Step 5: Solve for x
    x = 128,846,213,094.83/385,541.18
  6. Step 6: Final answer
    x = 334,195.72

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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.