Home / 385,153.07-531,501.32-213,077.51

Finding the Fourth Proportional to 385,153.07, 531,501.32 and 213,077.51

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Solution

The fourth proportional to 385,153.07, 531,501.32 and 213,077.51 is: 294,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,153.07 : 531,501.32 = 213,077.51 : x
  2. Step 2: Convert to fraction form
    385,153.07/531,501.32 = 213,077.51/x
  3. Step 3: Cross multiply
    385,153.07x = 531,501.32 × 213,077.51
  4. Step 4: Simplify right side
    385,153.07x = 113,250,975,702.50
  5. Step 5: Solve for x
    x = 113,250,975,702.50/385,153.07
  6. Step 6: Final answer
    x = 294,041.48

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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.