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Finding the Fourth Proportional to 612,615.60, 918,923.40 and 585,059.40

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Solution

The fourth proportional to 612,615.60, 918,923.40 and 585,059.40 is: 877,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,615.60 : 918,923.40 = 585,059.40 : x
  2. Step 2: Convert to fraction form
    612,615.60/918,923.40 = 585,059.40/x
  3. Step 3: Cross multiply
    612,615.60x = 918,923.40 × 585,059.40
  4. Step 4: Simplify right side
    612,615.60x = 537,624,773,049.96
  5. Step 5: Solve for x
    x = 537,624,773,049.96/612,615.60
  6. Step 6: Final answer
    x = 877,589.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.