Home / 459,071.40-688,607.10-352,783.20

Finding the Fourth Proportional to 459,071.40, 688,607.10 and 352,783.20

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Solution

The fourth proportional to 459,071.40, 688,607.10 and 352,783.20 is: 529,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,071.40 : 688,607.10 = 352,783.20 : x
  2. Step 2: Convert to fraction form
    459,071.40/688,607.10 = 352,783.20/x
  3. Step 3: Cross multiply
    459,071.40x = 688,607.10 × 352,783.20
  4. Step 4: Simplify right side
    459,071.40x = 242,929,016,280.72
  5. Step 5: Solve for x
    x = 242,929,016,280.72/459,071.40
  6. Step 6: Final answer
    x = 529,174.80

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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.