Home / 813,623,356.62-1,123,039,186.65-531,408,941.22

Finding the Fourth Proportional to 813,623,356.62, 1,123,039,186.65 and 531,408,941.22

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Solution

The fourth proportional to 813,623,356.62, 1,123,039,186.65 and 531,408,941.22 is: 733,500,409.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,623,356.62 : 1,123,039,186.65 = 531,408,941.22 : x
  2. Step 2: Convert to fraction form
    813,623,356.62/1,123,039,186.65 = 531,408,941.22/x
  3. Step 3: Cross multiply
    813,623,356.62x = 1,123,039,186.65 × 531,408,941.22
  4. Step 4: Simplify right side
    813,623,356.62x = 596,793,065,126,246,528
  5. Step 5: Solve for x
    x = 596,793,065,126,246,528/813,623,356.62
  6. Step 6: Final answer
    x = 733,500,409.34

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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.