Home / 830,378.66-1,145,926.06-467,806.86

Finding the Fourth Proportional to 830,378.66, 1,145,926.06 and 467,806.86

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Solution

The fourth proportional to 830,378.66, 1,145,926.06 and 467,806.86 is: 645,575.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,378.66 : 1,145,926.06 = 467,806.86 : x
  2. Step 2: Convert to fraction form
    830,378.66/1,145,926.06 = 467,806.86/x
  3. Step 3: Cross multiply
    830,378.66x = 1,145,926.06 × 467,806.86
  4. Step 4: Simplify right side
    830,378.66x = 536,072,071,920.77
  5. Step 5: Solve for x
    x = 536,072,071,920.77/830,378.66
  6. Step 6: Final answer
    x = 645,575.44

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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.