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Finding the Fourth Proportional to 556,233.12, 767,616.75 and 314,551.70

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Solution

The fourth proportional to 556,233.12, 767,616.75 and 314,551.70 is: 434,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,233.12 : 767,616.75 = 314,551.70 : x
  2. Step 2: Convert to fraction form
    556,233.12/767,616.75 = 314,551.70/x
  3. Step 3: Cross multiply
    556,233.12x = 767,616.75 × 314,551.70
  4. Step 4: Simplify right side
    556,233.12x = 241,455,149,822.89
  5. Step 5: Solve for x
    x = 241,455,149,822.89/556,233.12
  6. Step 6: Final answer
    x = 434,089.85

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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.