Home / 289,938.07-434,732.30-129,985.07

Finding the Fourth Proportional to 289,938.07, 434,732.30 and 129,985.07

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Solution

The fourth proportional to 289,938.07, 434,732.30 and 129,985.07 is: 194,899.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,938.07 : 434,732.30 = 129,985.07 : x
  2. Step 2: Convert to fraction form
    289,938.07/434,732.30 = 129,985.07/x
  3. Step 3: Cross multiply
    289,938.07x = 434,732.30 × 129,985.07
  4. Step 4: Simplify right side
    289,938.07x = 56,508,708,446.76
  5. Step 5: Solve for x
    x = 56,508,708,446.76/289,938.07
  6. Step 6: Final answer
    x = 194,899.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.