Home / 719,199,433.96-992,496,944.10-389,178,114.28

Finding the Fourth Proportional to 719,199,433.96, 992,496,944.10 and 389,178,114.28

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Solution

The fourth proportional to 719,199,433.96, 992,496,944.10 and 389,178,114.28 is: 537,066,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,199,433.96 : 992,496,944.10 = 389,178,114.28 : x
  2. Step 2: Convert to fraction form
    719,199,433.96/992,496,944.10 = 389,178,114.28/x
  3. Step 3: Cross multiply
    719,199,433.96x = 992,496,944.10 × 389,178,114.28
  4. Step 4: Simplify right side
    719,199,433.96x = 386,258,089,133,500,544
  5. Step 5: Solve for x
    x = 386,258,089,133,500,544/719,199,433.96
  6. Step 6: Final answer
    x = 537,066,731.28

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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.