Home / 719,310,890.39-992,648,629.76-406,047,809.75

Finding the Fourth Proportional to 719,310,890.39, 992,648,629.76 and 406,047,809.75

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Solution

The fourth proportional to 719,310,890.39, 992,648,629.76 and 406,047,809.75 is: 560,345,752.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,310,890.39 : 992,648,629.76 = 406,047,809.75 : x
  2. Step 2: Convert to fraction form
    719,310,890.39/992,648,629.76 = 406,047,809.75/x
  3. Step 3: Cross multiply
    719,310,890.39x = 992,648,629.76 × 406,047,809.75
  4. Step 4: Simplify right side
    719,310,890.39x = 403,062,801,958,393,216
  5. Step 5: Solve for x
    x = 403,062,801,958,393,216/719,310,890.39
  6. Step 6: Final answer
    x = 560,345,752.23

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.