Home / 637,299.28-879,484.19-346,919.19

Finding the Fourth Proportional to 637,299.28, 879,484.19 and 346,919.19

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Solution

The fourth proportional to 637,299.28, 879,484.19 and 346,919.19 is: 478,754.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,299.28 : 879,484.19 = 346,919.19 : x
  2. Step 2: Convert to fraction form
    637,299.28/879,484.19 = 346,919.19/x
  3. Step 3: Cross multiply
    637,299.28x = 879,484.19 × 346,919.19
  4. Step 4: Simplify right side
    637,299.28x = 305,109,941,078.01
  5. Step 5: Solve for x
    x = 305,109,941,078.01/637,299.28
  6. Step 6: Final answer
    x = 478,754.57

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Double scale
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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.