Home / 838,312.75-1,156,871.73-456,342.40

Finding the Fourth Proportional to 838,312.75, 1,156,871.73 and 456,342.40

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Solution

The fourth proportional to 838,312.75, 1,156,871.73 and 456,342.40 is: 629,752.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,312.75 : 1,156,871.73 = 456,342.40 : x
  2. Step 2: Convert to fraction form
    838,312.75/1,156,871.73 = 456,342.40/x
  3. Step 3: Cross multiply
    838,312.75x = 1,156,871.73 × 456,342.40
  4. Step 4: Simplify right side
    838,312.75x = 527,929,621,760.35
  5. Step 5: Solve for x
    x = 527,929,621,760.35/838,312.75
  6. Step 6: Final answer
    x = 629,752.59

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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.