Home / 1,238,431.17-1,857,913.38-385,484.70

Finding the Fourth Proportional to 1,238,431.17, 1,857,913.38 and 385,484.70

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Solution

The fourth proportional to 1,238,431.17, 1,857,913.38 and 385,484.70 is: 578,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,431.17 : 1,857,913.38 = 385,484.70 : x
  2. Step 2: Convert to fraction form
    1,238,431.17/1,857,913.38 = 385,484.70/x
  3. Step 3: Cross multiply
    1,238,431.17x = 1,857,913.38 × 385,484.70
  4. Step 4: Simplify right side
    1,238,431.17x = 716,197,181,915.29
  5. Step 5: Solve for x
    x = 716,197,181,915.29/1,238,431.17
  6. Step 6: Final answer
    x = 578,310.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.