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Finding the Fourth Proportional to 612,114.60, 916,098.30 and 612,114.60

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Solution

The fourth proportional to 612,114.60, 916,098.30 and 612,114.60 is: 916,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,114.60 : 916,098.30 = 612,114.60 : x
  2. Step 2: Convert to fraction form
    612,114.60/916,098.30 = 612,114.60/x
  3. Step 3: Cross multiply
    612,114.60x = 916,098.30 × 612,114.60
  4. Step 4: Simplify right side
    612,114.60x = 560,757,144,465.18
  5. Step 5: Solve for x
    x = 560,757,144,465.18/612,114.60
  6. Step 6: Final answer
    x = 916,098.30

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Double scale
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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.