Home / 719,242,629.60-992,554,790.94-389,217,768.60

Finding the Fourth Proportional to 719,242,629.60, 992,554,790.94 and 389,217,768.60

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Solution

The fourth proportional to 719,242,629.60, 992,554,790.94 and 389,217,768.60 is: 537,120,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,242,629.60 : 992,554,790.94 = 389,217,768.60 : x
  2. Step 2: Convert to fraction form
    719,242,629.60/992,554,790.94 = 389,217,768.60/x
  3. Step 3: Cross multiply
    719,242,629.60x = 992,554,790.94 × 389,217,768.60
  4. Step 4: Simplify right side
    719,242,629.60x = 386,319,960,942,906,368
  5. Step 5: Solve for x
    x = 386,319,960,942,906,368/719,242,629.60
  6. Step 6: Final answer
    x = 537,120,500.15

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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.