Home / 714,230.35-985,666.30-391,951.98

Finding the Fourth Proportional to 714,230.35, 985,666.30 and 391,951.98

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Solution

The fourth proportional to 714,230.35, 985,666.30 and 391,951.98 is: 540,909.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,230.35 : 985,666.30 = 391,951.98 : x
  2. Step 2: Convert to fraction form
    714,230.35/985,666.30 = 391,951.98/x
  3. Step 3: Cross multiply
    714,230.35x = 985,666.30 × 391,951.98
  4. Step 4: Simplify right side
    714,230.35x = 386,333,857,904.27
  5. Step 5: Solve for x
    x = 386,333,857,904.27/714,230.35
  6. Step 6: Final answer
    x = 540,909.33

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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.