Home / 626,523.40-939,785.10-437,566.60

Finding the Fourth Proportional to 626,523.40, 939,785.10 and 437,566.60

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Solution

The fourth proportional to 626,523.40, 939,785.10 and 437,566.60 is: 656,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,523.40 : 939,785.10 = 437,566.60 : x
  2. Step 2: Convert to fraction form
    626,523.40/939,785.10 = 437,566.60/x
  3. Step 3: Cross multiply
    626,523.40x = 939,785.10 × 437,566.60
  4. Step 4: Simplify right side
    626,523.40x = 411,218,570,937.66
  5. Step 5: Solve for x
    x = 411,218,570,937.66/626,523.40
  6. Step 6: Final answer
    x = 656,349.90

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Half scale
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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.