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Finding the Fourth Proportional to 626,655.60, 939,983.40 and 183,423.60

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Solution

The fourth proportional to 626,655.60, 939,983.40 and 183,423.60 is: 275,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,655.60 : 939,983.40 = 183,423.60 : x
  2. Step 2: Convert to fraction form
    626,655.60/939,983.40 = 183,423.60/x
  3. Step 3: Cross multiply
    626,655.60x = 939,983.40 × 183,423.60
  4. Step 4: Simplify right side
    626,655.60x = 172,415,139,168.24
  5. Step 5: Solve for x
    x = 172,415,139,168.24/626,655.60
  6. Step 6: Final answer
    x = 275,135.40

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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.