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Finding the Fourth Proportional to 677,886.84, 935,483.18 and 371,964.96

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Solution

The fourth proportional to 677,886.84, 935,483.18 and 371,964.96 is: 513,311.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,886.84 : 935,483.18 = 371,964.96 : x
  2. Step 2: Convert to fraction form
    677,886.84/935,483.18 = 371,964.96/x
  3. Step 3: Cross multiply
    677,886.84x = 935,483.18 × 371,964.96
  4. Step 4: Simplify right side
    677,886.84x = 347,966,961,769.55
  5. Step 5: Solve for x
    x = 347,966,961,769.55/677,886.84
  6. Step 6: Final answer
    x = 513,311.28

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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.