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Finding the Fourth Proportional to 556,467.57, 767,925.06 and 314,744.94

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Solution

The fourth proportional to 556,467.57, 767,925.06 and 314,744.94 is: 434,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,467.57 : 767,925.06 = 314,744.94 : x
  2. Step 2: Convert to fraction form
    556,467.57/767,925.06 = 314,744.94/x
  3. Step 3: Cross multiply
    556,467.57x = 767,925.06 × 314,744.94
  4. Step 4: Simplify right side
    556,467.57x = 241,700,525,753.90
  5. Step 5: Solve for x
    x = 241,700,525,753.90/556,467.57
  6. Step 6: Final answer
    x = 434,347.91

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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.