Home / 428,985.54-592,000.74-237,998.88

Finding the Fourth Proportional to 428,985.54, 592,000.74 and 237,998.88

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Solution

The fourth proportional to 428,985.54, 592,000.74 and 237,998.88 is: 328,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,985.54 : 592,000.74 = 237,998.88 : x
  2. Step 2: Convert to fraction form
    428,985.54/592,000.74 = 237,998.88/x
  3. Step 3: Cross multiply
    428,985.54x = 592,000.74 × 237,998.88
  4. Step 4: Simplify right side
    428,985.54x = 140,895,513,079.17
  5. Step 5: Solve for x
    x = 140,895,513,079.17/428,985.54
  6. Step 6: Final answer
    x = 328,438.84

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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.