Home / 385,110.50-531,411.59-213,001.11

Finding the Fourth Proportional to 385,110.50, 531,411.59 and 213,001.11

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Solution

The fourth proportional to 385,110.50, 531,411.59 and 213,001.11 is: 293,918.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,110.50 : 531,411.59 = 213,001.11 : x
  2. Step 2: Convert to fraction form
    385,110.50/531,411.59 = 213,001.11/x
  3. Step 3: Cross multiply
    385,110.50x = 531,411.59 × 213,001.11
  4. Step 4: Simplify right side
    385,110.50x = 113,191,259,069.37
  5. Step 5: Solve for x
    x = 113,191,259,069.37/385,110.50
  6. Step 6: Final answer
    x = 293,918.92

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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.