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Finding the Fourth Proportional to 556,208.70, 767,583.12 and 314,527.43

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Solution

The fourth proportional to 556,208.70, 767,583.12 and 314,527.43 is: 434,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,208.70 : 767,583.12 = 314,527.43 : x
  2. Step 2: Convert to fraction form
    556,208.70/767,583.12 = 314,527.43/x
  3. Step 3: Cross multiply
    556,208.70x = 767,583.12 × 314,527.43
  4. Step 4: Simplify right side
    556,208.70x = 241,425,946,542.29
  5. Step 5: Solve for x
    x = 241,425,946,542.29/556,208.70
  6. Step 6: Final answer
    x = 434,056.40

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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.