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Finding the Fourth Proportional to 617,624.40, 926,436.60 and 243,598.80

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Solution

The fourth proportional to 617,624.40, 926,436.60 and 243,598.80 is: 365,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,624.40 : 926,436.60 = 243,598.80 : x
  2. Step 2: Convert to fraction form
    617,624.40/926,436.60 = 243,598.80/x
  3. Step 3: Cross multiply
    617,624.40x = 926,436.60 × 243,598.80
  4. Step 4: Simplify right side
    617,624.40x = 225,678,844,036.08
  5. Step 5: Solve for x
    x = 225,678,844,036.08/617,624.40
  6. Step 6: Final answer
    x = 365,398.20

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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.