Home / 386,890.68-533,925.81-214,808.65

Finding the Fourth Proportional to 386,890.68, 533,925.81 and 214,808.65

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Solution

The fourth proportional to 386,890.68, 533,925.81 and 214,808.65 is: 296,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,890.68 : 533,925.81 = 214,808.65 : x
  2. Step 2: Convert to fraction form
    386,890.68/533,925.81 = 214,808.65/x
  3. Step 3: Cross multiply
    386,890.68x = 533,925.81 × 214,808.65
  4. Step 4: Simplify right side
    386,890.68x = 114,691,880,973.32
  5. Step 5: Solve for x
    x = 114,691,880,973.32/386,890.68
  6. Step 6: Final answer
    x = 296,445.19

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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.