Home / 687,936.92-949,320.99-382,032.72

Finding the Fourth Proportional to 687,936.92, 949,320.99 and 382,032.72

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Solution

The fourth proportional to 687,936.92, 949,320.99 and 382,032.72 is: 527,187.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,936.92 : 949,320.99 = 382,032.72 : x
  2. Step 2: Convert to fraction form
    687,936.92/949,320.99 = 382,032.72/x
  3. Step 3: Cross multiply
    687,936.92x = 949,320.99 × 382,032.72
  4. Step 4: Simplify right side
    687,936.92x = 362,671,679,962.79
  5. Step 5: Solve for x
    x = 362,671,679,962.79/687,936.92
  6. Step 6: Final answer
    x = 527,187.41

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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.