Home / 838,146.88-1,156,642.63-456,176.40

Finding the Fourth Proportional to 838,146.88, 1,156,642.63 and 456,176.40

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Solution

The fourth proportional to 838,146.88, 1,156,642.63 and 456,176.40 is: 629,523.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,146.88 : 1,156,642.63 = 456,176.40 : x
  2. Step 2: Convert to fraction form
    838,146.88/1,156,642.63 = 456,176.40/x
  3. Step 3: Cross multiply
    838,146.88x = 1,156,642.63 × 456,176.40
  4. Step 4: Simplify right side
    838,146.88x = 527,633,071,039.93
  5. Step 5: Solve for x
    x = 527,633,071,039.93/838,146.88
  6. Step 6: Final answer
    x = 629,523.40

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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.