Home / 497,184.15-686,072.30-279,376.23

Finding the Fourth Proportional to 497,184.15, 686,072.30 and 279,376.23

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Solution

The fourth proportional to 497,184.15, 686,072.30 and 279,376.23 is: 385,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,184.15 : 686,072.30 = 279,376.23 : x
  2. Step 2: Convert to fraction form
    497,184.15/686,072.30 = 279,376.23/x
  3. Step 3: Cross multiply
    497,184.15x = 686,072.30 × 279,376.23
  4. Step 4: Simplify right side
    497,184.15x = 191,672,291,284.55
  5. Step 5: Solve for x
    x = 191,672,291,284.55/497,184.15
  6. Step 6: Final answer
    x = 385,515.69

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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.