Home / 382,407.12-527,700.15-212,637.60

Finding the Fourth Proportional to 382,407.12, 527,700.15 and 212,637.60

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Solution

The fourth proportional to 382,407.12, 527,700.15 and 212,637.60 is: 293,427.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,407.12 : 527,700.15 = 212,637.60 : x
  2. Step 2: Convert to fraction form
    382,407.12/527,700.15 = 212,637.60/x
  3. Step 3: Cross multiply
    382,407.12x = 527,700.15 × 212,637.60
  4. Step 4: Simplify right side
    382,407.12x = 112,208,893,415.64
  5. Step 5: Solve for x
    x = 112,208,893,415.64/382,407.12
  6. Step 6: Final answer
    x = 293,427.84

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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.