Home / 813,756.07-1,122,938.40-451,158.76

Finding the Fourth Proportional to 813,756.07, 1,122,938.40 and 451,158.76

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Solution

The fourth proportional to 813,756.07, 1,122,938.40 and 451,158.76 is: 622,574.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,756.07 : 1,122,938.40 = 451,158.76 : x
  2. Step 2: Convert to fraction form
    813,756.07/1,122,938.40 = 451,158.76/x
  3. Step 3: Cross multiply
    813,756.07x = 1,122,938.40 × 451,158.76
  4. Step 4: Simplify right side
    813,756.07x = 506,623,496,100.38
  5. Step 5: Solve for x
    x = 506,623,496,100.38/813,756.07
  6. Step 6: Final answer
    x = 622,574.15

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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.