Home / 1,015,728.55-1,401,696.43-556,834.78

Finding the Fourth Proportional to 1,015,728.55, 1,401,696.43 and 556,834.78

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Solution

The fourth proportional to 1,015,728.55, 1,401,696.43 and 556,834.78 is: 768,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,728.55 : 1,401,696.43 = 556,834.78 : x
  2. Step 2: Convert to fraction form
    1,015,728.55/1,401,696.43 = 556,834.78/x
  3. Step 3: Cross multiply
    1,015,728.55x = 1,401,696.43 × 556,834.78
  4. Step 4: Simplify right side
    1,015,728.55x = 780,513,323,225.84
  5. Step 5: Solve for x
    x = 780,513,323,225.84/1,015,728.55
  6. Step 6: Final answer
    x = 768,427.08

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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.