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Finding the Fourth Proportional to 537,814.20, 804,971.70 and 418,841.40

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Solution

The fourth proportional to 537,814.20, 804,971.70 and 418,841.40 is: 626,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,814.20 : 804,971.70 = 418,841.40 : x
  2. Step 2: Convert to fraction form
    537,814.20/804,971.70 = 418,841.40/x
  3. Step 3: Cross multiply
    537,814.20x = 804,971.70 × 418,841.40
  4. Step 4: Simplify right side
    537,814.20x = 337,155,473,788.38
  5. Step 5: Solve for x
    x = 337,155,473,788.38/537,814.20
  6. Step 6: Final answer
    x = 626,899.54

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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.