Home / 921,188.81-1,381,783.23-359,829.65

Finding the Fourth Proportional to 921,188.81, 1,381,783.23 and 359,829.65

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Solution

The fourth proportional to 921,188.81, 1,381,783.23 and 359,829.65 is: 539,744.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,188.81 : 1,381,783.23 = 359,829.65 : x
  2. Step 2: Convert to fraction form
    921,188.81/1,381,783.23 = 359,829.65/x
  3. Step 3: Cross multiply
    921,188.81x = 1,381,783.23 × 359,829.65
  4. Step 4: Simplify right side
    921,188.81x = 497,206,569,117.85
  5. Step 5: Solve for x
    x = 497,206,569,117.85/921,188.81
  6. Step 6: Final answer
    x = 539,744.48

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.