Home / 385,253.10-577,881.45-135,935.10

Finding the Fourth Proportional to 385,253.10, 577,881.45 and 135,935.10

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Solution

The fourth proportional to 385,253.10, 577,881.45 and 135,935.10 is: 203,903.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,253.10 : 577,881.45 = 135,935.10 : x
  2. Step 2: Convert to fraction form
    385,253.10/577,881.45 = 135,935.10/x
  3. Step 3: Cross multiply
    385,253.10x = 577,881.45 × 135,935.10
  4. Step 4: Simplify right side
    385,253.10x = 78,554,372,693.90
  5. Step 5: Solve for x
    x = 78,554,372,693.90/385,253.10
  6. Step 6: Final answer
    x = 203,903.29

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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.