Home / 685,706,749.59-946,259,219.06-403,467,471.35

Finding the Fourth Proportional to 685,706,749.59, 946,259,219.06 and 403,467,471.35

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Solution

The fourth proportional to 685,706,749.59, 946,259,219.06 and 403,467,471.35 is: 556,775,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,706,749.59 : 946,259,219.06 = 403,467,471.35 : x
  2. Step 2: Convert to fraction form
    685,706,749.59/946,259,219.06 = 403,467,471.35/x
  3. Step 3: Cross multiply
    685,706,749.59x = 946,259,219.06 × 403,467,471.35
  4. Step 4: Simplify right side
    685,706,749.59x = 381,784,814,361,675,776
  5. Step 5: Solve for x
    x = 381,784,814,361,675,776/685,706,749.59
  6. Step 6: Final answer
    x = 556,775,640.01

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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.