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Finding the Fourth Proportional to 459,000.90, 688,501.35 and 441,504.90

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Solution

The fourth proportional to 459,000.90, 688,501.35 and 441,504.90 is: 662,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,000.90 : 688,501.35 = 441,504.90 : x
  2. Step 2: Convert to fraction form
    459,000.90/688,501.35 = 441,504.90/x
  3. Step 3: Cross multiply
    459,000.90x = 688,501.35 × 441,504.90
  4. Step 4: Simplify right side
    459,000.90x = 303,976,719,681.62
  5. Step 5: Solve for x
    x = 303,976,719,681.62/459,000.90
  6. Step 6: Final answer
    x = 662,257.35

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Half scale
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Double scale
Find fourth proportional to 459,001.90, 688,502.85 and 441,505.90
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.