Home / 879,574.15-1,213,942.62-557,314.30

Finding the Fourth Proportional to 879,574.15, 1,213,942.62 and 557,314.30

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Solution

The fourth proportional to 879,574.15, 1,213,942.62 and 557,314.30 is: 769,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,574.15 : 1,213,942.62 = 557,314.30 : x
  2. Step 2: Convert to fraction form
    879,574.15/1,213,942.62 = 557,314.30/x
  3. Step 3: Cross multiply
    879,574.15x = 1,213,942.62 × 557,314.30
  4. Step 4: Simplify right side
    879,574.15x = 676,547,581,505.47
  5. Step 5: Solve for x
    x = 676,547,581,505.47/879,574.15
  6. Step 6: Final answer
    x = 769,176.29

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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.