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Finding the Fourth Proportional to 706,554.60, 974,702.88 and 419,871.84

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Solution

The fourth proportional to 706,554.60, 974,702.88 and 419,871.84 is: 579,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,554.60 : 974,702.88 = 419,871.84 : x
  2. Step 2: Convert to fraction form
    706,554.60/974,702.88 = 419,871.84/x
  3. Step 3: Cross multiply
    706,554.60x = 974,702.88 × 419,871.84
  4. Step 4: Simplify right side
    706,554.60x = 409,250,291,678.90
  5. Step 5: Solve for x
    x = 409,250,291,678.90/706,554.60
  6. Step 6: Final answer
    x = 579,219.63

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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.