Home / 428,938.18-592,005.65-238,013.08

Finding the Fourth Proportional to 428,938.18, 592,005.65 and 238,013.08

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Solution

The fourth proportional to 428,938.18, 592,005.65 and 238,013.08 is: 328,497.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,938.18 : 592,005.65 = 238,013.08 : x
  2. Step 2: Convert to fraction form
    428,938.18/592,005.65 = 238,013.08/x
  3. Step 3: Cross multiply
    428,938.18x = 592,005.65 × 238,013.08
  4. Step 4: Simplify right side
    428,938.18x = 140,905,085,463.82
  5. Step 5: Solve for x
    x = 140,905,085,463.82/428,938.18
  6. Step 6: Final answer
    x = 328,497.42

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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.