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Finding the Fourth Proportional to 612,821.60, 919,232.40 and 585,265.40

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Solution

The fourth proportional to 612,821.60, 919,232.40 and 585,265.40 is: 877,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,821.60 : 919,232.40 = 585,265.40 : x
  2. Step 2: Convert to fraction form
    612,821.60/919,232.40 = 585,265.40/x
  3. Step 3: Cross multiply
    612,821.60x = 919,232.40 × 585,265.40
  4. Step 4: Simplify right side
    612,821.60x = 537,994,918,278.96
  5. Step 5: Solve for x
    x = 537,994,918,278.96/612,821.60
  6. Step 6: Final answer
    x = 877,898.10

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Similar ratio
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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.