Home / 434,128.20-651,192.30-134,606.40

Finding the Fourth Proportional to 434,128.20, 651,192.30 and 134,606.40

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Solution

The fourth proportional to 434,128.20, 651,192.30 and 134,606.40 is: 201,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,128.20 : 651,192.30 = 134,606.40 : x
  2. Step 2: Convert to fraction form
    434,128.20/651,192.30 = 134,606.40/x
  3. Step 3: Cross multiply
    434,128.20x = 651,192.30 × 134,606.40
  4. Step 4: Simplify right side
    434,128.20x = 87,654,651,210.72
  5. Step 5: Solve for x
    x = 87,654,651,210.72/434,128.20
  6. Step 6: Final answer
    x = 201,909.60

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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.