Home / 661,084,515.70-991,626,773.55-354,974,499.70

Finding the Fourth Proportional to 661,084,515.70, 991,626,773.55 and 354,974,499.70

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Solution

The fourth proportional to 661,084,515.70, 991,626,773.55 and 354,974,499.70 is: 532,461,749.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,084,515.70 : 991,626,773.55 = 354,974,499.70 : x
  2. Step 2: Convert to fraction form
    661,084,515.70/991,626,773.55 = 354,974,499.70/x
  3. Step 3: Cross multiply
    661,084,515.70x = 991,626,773.55 × 354,974,499.70
  4. Step 4: Simplify right side
    661,084,515.70x = 352,002,217,830,036,416
  5. Step 5: Solve for x
    x = 352,002,217,830,036,416/661,084,515.70
  6. Step 6: Final answer
    x = 532,461,749.55

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Double scale
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Similar ratio
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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.