Home / 710,621,074.36-980,581,585.26-393,030,852.94

Finding the Fourth Proportional to 710,621,074.36, 980,581,585.26 and 393,030,852.94

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Solution

The fourth proportional to 710,621,074.36, 980,581,585.26 and 393,030,852.94 is: 542,340,820.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,621,074.36 : 980,581,585.26 = 393,030,852.94 : x
  2. Step 2: Convert to fraction form
    710,621,074.36/980,581,585.26 = 393,030,852.94/x
  3. Step 3: Cross multiply
    710,621,074.36x = 980,581,585.26 × 393,030,852.94
  4. Step 4: Simplify right side
    710,621,074.36x = 385,398,816,831,995,136
  5. Step 5: Solve for x
    x = 385,398,816,831,995,136/710,621,074.36
  6. Step 6: Final answer
    x = 542,340,820.92

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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.