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Finding the Fourth Proportional to 556,401.56, 767,825.06 and 314,675.06

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Solution

The fourth proportional to 556,401.56, 767,825.06 and 314,675.06 is: 434,246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,401.56 : 767,825.06 = 314,675.06 : x
  2. Step 2: Convert to fraction form
    556,401.56/767,825.06 = 314,675.06/x
  3. Step 3: Cross multiply
    556,401.56x = 767,825.06 × 314,675.06
  4. Step 4: Simplify right side
    556,401.56x = 241,615,391,412.50
  5. Step 5: Solve for x
    x = 241,615,391,412.50/556,401.56
  6. Step 6: Final answer
    x = 434,246.43

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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.