Home / 786,639,934.06-1,085,562,945.29-434,215,831.34

Finding the Fourth Proportional to 786,639,934.06, 1,085,562,945.29 and 434,215,831.34

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Solution

The fourth proportional to 786,639,934.06, 1,085,562,945.29 and 434,215,831.34 is: 599,217,756.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,639,934.06 : 1,085,562,945.29 = 434,215,831.34 : x
  2. Step 2: Convert to fraction form
    786,639,934.06/1,085,562,945.29 = 434,215,831.34/x
  3. Step 3: Cross multiply
    786,639,934.06x = 1,085,562,945.29 × 434,215,831.34
  4. Step 4: Simplify right side
    786,639,934.06x = 471,368,616,764,795,712
  5. Step 5: Solve for x
    x = 471,368,616,764,795,712/786,639,934.06
  6. Step 6: Final answer
    x = 599,217,756.89

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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.