Home / 719,313,298.25-992,641,873.65-401,778,062.56

Finding the Fourth Proportional to 719,313,298.25, 992,641,873.65 and 401,778,062.56

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Solution

The fourth proportional to 719,313,298.25, 992,641,873.65 and 401,778,062.56 is: 554,447,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,313,298.25 : 992,641,873.65 = 401,778,062.56 : x
  2. Step 2: Convert to fraction form
    719,313,298.25/992,641,873.65 = 401,778,062.56/x
  3. Step 3: Cross multiply
    719,313,298.25x = 992,641,873.65 × 401,778,062.56
  4. Step 4: Simplify right side
    719,313,298.25x = 398,821,728,809,131,712
  5. Step 5: Solve for x
    x = 398,821,728,809,131,712/719,313,298.25
  6. Step 6: Final answer
    x = 554,447,873.80

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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.