Home / 927,347,966.40-1,391,021,949.60-497,366,270.40

Finding the Fourth Proportional to 927,347,966.40, 1,391,021,949.60 and 497,366,270.40

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Solution

The fourth proportional to 927,347,966.40, 1,391,021,949.60 and 497,366,270.40 is: 746,049,405.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,347,966.40 : 1,391,021,949.60 = 497,366,270.40 : x
  2. Step 2: Convert to fraction form
    927,347,966.40/1,391,021,949.60 = 497,366,270.40/x
  3. Step 3: Cross multiply
    927,347,966.40x = 1,391,021,949.60 × 497,366,270.40
  4. Step 4: Simplify right side
    927,347,966.40x = 691,847,399,117,088,640
  5. Step 5: Solve for x
    x = 691,847,399,117,088,640/927,347,966.40
  6. Step 6: Final answer
    x = 746,049,405.60

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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.