Home / 499,005.64-688,612.50-272,650.84

Finding the Fourth Proportional to 499,005.64, 688,612.50 and 272,650.84

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Solution

The fourth proportional to 499,005.64, 688,612.50 and 272,650.84 is: 376,249.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,005.64 : 688,612.50 = 272,650.84 : x
  2. Step 2: Convert to fraction form
    499,005.64/688,612.50 = 272,650.84/x
  3. Step 3: Cross multiply
    499,005.64x = 688,612.50 × 272,650.84
  4. Step 4: Simplify right side
    499,005.64x = 187,750,776,559.50
  5. Step 5: Solve for x
    x = 187,750,776,559.50/499,005.64
  6. Step 6: Final answer
    x = 376,249.81

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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.