Home / 434,490.90-651,736.35-153,971.70

Finding the Fourth Proportional to 434,490.90, 651,736.35 and 153,971.70

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Solution

The fourth proportional to 434,490.90, 651,736.35 and 153,971.70 is: 230,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,490.90 : 651,736.35 = 153,971.70 : x
  2. Step 2: Convert to fraction form
    434,490.90/651,736.35 = 153,971.70/x
  3. Step 3: Cross multiply
    434,490.90x = 651,736.35 × 153,971.70
  4. Step 4: Simplify right side
    434,490.90x = 100,348,953,761.30
  5. Step 5: Solve for x
    x = 100,348,953,761.30/434,490.90
  6. Step 6: Final answer
    x = 230,957.55

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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.