Home / 808,585,387.39-1,115,847,825.96-437,307,418.77

Finding the Fourth Proportional to 808,585,387.39, 1,115,847,825.96 and 437,307,418.77

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Solution

The fourth proportional to 808,585,387.39, 1,115,847,825.96 and 437,307,418.77 is: 603,484,233.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,585,387.39 : 1,115,847,825.96 = 437,307,418.77 : x
  2. Step 2: Convert to fraction form
    808,585,387.39/1,115,847,825.96 = 437,307,418.77/x
  3. Step 3: Cross multiply
    808,585,387.39x = 1,115,847,825.96 × 437,307,418.77
  4. Step 4: Simplify right side
    808,585,387.39x = 487,968,532,510,683,776
  5. Step 5: Solve for x
    x = 487,968,532,510,683,776/808,585,387.39
  6. Step 6: Final answer
    x = 603,484,233.23

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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.