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Finding the Fourth Proportional to 617,631.60, 926,447.40 and 608,300.40

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Solution

The fourth proportional to 617,631.60, 926,447.40 and 608,300.40 is: 912,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,631.60 : 926,447.40 = 608,300.40 : x
  2. Step 2: Convert to fraction form
    617,631.60/926,447.40 = 608,300.40/x
  3. Step 3: Cross multiply
    617,631.60x = 926,447.40 × 608,300.40
  4. Step 4: Simplify right side
    617,631.60x = 563,558,323,998.96
  5. Step 5: Solve for x
    x = 563,558,323,998.96/617,631.60
  6. Step 6: Final answer
    x = 912,450.60

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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.