Home / 353,457.45-487,776.30-192,312.63

Finding the Fourth Proportional to 353,457.45, 487,776.30 and 192,312.63

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Solution

The fourth proportional to 353,457.45, 487,776.30 and 192,312.63 is: 265,394.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,457.45 : 487,776.30 = 192,312.63 : x
  2. Step 2: Convert to fraction form
    353,457.45/487,776.30 = 192,312.63/x
  3. Step 3: Cross multiply
    353,457.45x = 487,776.30 × 192,312.63
  4. Step 4: Simplify right side
    353,457.45x = 93,805,543,104.67
  5. Step 5: Solve for x
    x = 93,805,543,104.67/353,457.45
  6. Step 6: Final answer
    x = 265,394.16

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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.