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Finding the Fourth Proportional to 586,327.40, 879,491.10 and 437,611.40

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Solution

The fourth proportional to 586,327.40, 879,491.10 and 437,611.40 is: 656,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,327.40 : 879,491.10 = 437,611.40 : x
  2. Step 2: Convert to fraction form
    586,327.40/879,491.10 = 437,611.40/x
  3. Step 3: Cross multiply
    586,327.40x = 879,491.10 × 437,611.40
  4. Step 4: Simplify right side
    586,327.40x = 384,875,331,558.54
  5. Step 5: Solve for x
    x = 384,875,331,558.54/586,327.40
  6. Step 6: Final answer
    x = 656,417.10

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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.