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Finding the Fourth Proportional to 934,821,000.90, 1,402,231,501.35 and 891,774,279.90

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Solution

The fourth proportional to 934,821,000.90, 1,402,231,501.35 and 891,774,279.90 is: 1,337,661,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,821,000.90 : 1,402,231,501.35 = 891,774,279.90 : x
  2. Step 2: Convert to fraction form
    934,821,000.90/1,402,231,501.35 = 891,774,279.90/x
  3. Step 3: Cross multiply
    934,821,000.90x = 1,402,231,501.35 × 891,774,279.90
  4. Step 4: Simplify right side
    934,821,000.90x = 1,250,473,987,369,491,968
  5. Step 5: Solve for x
    x = 1,250,473,987,369,491,968/934,821,000.90
  6. Step 6: Final answer
    x = 1,337,661,419.85

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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.