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Finding the Fourth Proportional to 556,591.71, 768,096.77 and 314,869.17

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Solution

The fourth proportional to 556,591.71, 768,096.77 and 314,869.17 is: 434,519.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,591.71 : 768,096.77 = 314,869.17 : x
  2. Step 2: Convert to fraction form
    556,591.71/768,096.77 = 314,869.17/x
  3. Step 3: Cross multiply
    556,591.71x = 768,096.77 × 314,869.17
  4. Step 4: Simplify right side
    556,591.71x = 241,849,990,875.24
  5. Step 5: Solve for x
    x = 241,849,990,875.24/556,591.71
  6. Step 6: Final answer
    x = 434,519.57

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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.