Home / 712,827.88-983,703.18-386,141.62

Finding the Fourth Proportional to 712,827.88, 983,703.18 and 386,141.62

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Solution

The fourth proportional to 712,827.88, 983,703.18 and 386,141.62 is: 532,875.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,827.88 : 983,703.18 = 386,141.62 : x
  2. Step 2: Convert to fraction form
    712,827.88/983,703.18 = 386,141.62/x
  3. Step 3: Cross multiply
    712,827.88x = 983,703.18 × 386,141.62
  4. Step 4: Simplify right side
    712,827.88x = 379,848,739,524.35
  5. Step 5: Solve for x
    x = 379,848,739,524.35/712,827.88
  6. Step 6: Final answer
    x = 532,875.82

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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.