Home / 497,916.14-687,121.08-283,056.20

Finding the Fourth Proportional to 497,916.14, 687,121.08 and 283,056.20

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Solution

The fourth proportional to 497,916.14, 687,121.08 and 283,056.20 is: 390,615.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,916.14 : 687,121.08 = 283,056.20 : x
  2. Step 2: Convert to fraction form
    497,916.14/687,121.08 = 283,056.20/x
  3. Step 3: Cross multiply
    497,916.14x = 687,121.08 × 283,056.20
  4. Step 4: Simplify right side
    497,916.14x = 194,493,881,844.70
  5. Step 5: Solve for x
    x = 194,493,881,844.70/497,916.14
  6. Step 6: Final answer
    x = 390,615.74

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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.