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Finding the Fourth Proportional to 586,155.60, 879,233.40 and 212,043.60

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Solution

The fourth proportional to 586,155.60, 879,233.40 and 212,043.60 is: 318,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,155.60 : 879,233.40 = 212,043.60 : x
  2. Step 2: Convert to fraction form
    586,155.60/879,233.40 = 212,043.60/x
  3. Step 3: Cross multiply
    586,155.60x = 879,233.40 × 212,043.60
  4. Step 4: Simplify right side
    586,155.60x = 186,435,815,376.24
  5. Step 5: Solve for x
    x = 186,435,815,376.24/586,155.60
  6. Step 6: Final answer
    x = 318,065.40

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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.