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Finding the Fourth Proportional to 610,671.40, 916,007.10 and 433,524.40

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Solution

The fourth proportional to 610,671.40, 916,007.10 and 433,524.40 is: 650,286.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,671.40 : 916,007.10 = 433,524.40 : x
  2. Step 2: Convert to fraction form
    610,671.40/916,007.10 = 433,524.40/x
  3. Step 3: Cross multiply
    610,671.40x = 916,007.10 × 433,524.40
  4. Step 4: Simplify right side
    610,671.40x = 397,111,428,423.24
  5. Step 5: Solve for x
    x = 397,111,428,423.24/610,671.40
  6. Step 6: Final answer
    x = 650,286.60

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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.