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Finding the Fourth Proportional to 610,714.40, 916,071.60 and 459,155.30

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Solution

The fourth proportional to 610,714.40, 916,071.60 and 459,155.30 is: 688,732.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,714.40 : 916,071.60 = 459,155.30 : x
  2. Step 2: Convert to fraction form
    610,714.40/916,071.60 = 459,155.30/x
  3. Step 3: Cross multiply
    610,714.40x = 916,071.60 × 459,155.30
  4. Step 4: Simplify right side
    610,714.40x = 420,619,130,319.48
  5. Step 5: Solve for x
    x = 420,619,130,319.48/610,714.40
  6. Step 6: Final answer
    x = 688,732.95

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Similar ratio
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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.