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Finding the Fourth Proportional to 556,213.87, 767,581.04 and 326,780.71

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Solution

The fourth proportional to 556,213.87, 767,581.04 and 326,780.71 is: 450,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,213.87 : 767,581.04 = 326,780.71 : x
  2. Step 2: Convert to fraction form
    556,213.87/767,581.04 = 326,780.71/x
  3. Step 3: Cross multiply
    556,213.87x = 767,581.04 × 326,780.71
  4. Step 4: Simplify right side
    556,213.87x = 250,830,677,233.74
  5. Step 5: Solve for x
    x = 250,830,677,233.74/556,213.87
  6. Step 6: Final answer
    x = 450,960.85

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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.