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Finding the Fourth Proportional to 693,094.74, 956,425.41 and 402,680.58

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Solution

The fourth proportional to 693,094.74, 956,425.41 and 402,680.58 is: 555,672.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,094.74 : 956,425.41 = 402,680.58 : x
  2. Step 2: Convert to fraction form
    693,094.74/956,425.41 = 402,680.58/x
  3. Step 3: Cross multiply
    693,094.74x = 956,425.41 × 402,680.58
  4. Step 4: Simplify right side
    693,094.74x = 385,133,938,825.54
  5. Step 5: Solve for x
    x = 385,133,938,825.54/693,094.74
  6. Step 6: Final answer
    x = 555,672.86

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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.