Home / 855,244.32-1,282,840.02-406,288.32

Finding the Fourth Proportional to 855,244.32, 1,282,840.02 and 406,288.32

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Solution

The fourth proportional to 855,244.32, 1,282,840.02 and 406,288.32 is: 609,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,244.32 : 1,282,840.02 = 406,288.32 : x
  2. Step 2: Convert to fraction form
    855,244.32/1,282,840.02 = 406,288.32/x
  3. Step 3: Cross multiply
    855,244.32x = 1,282,840.02 × 406,288.32
  4. Step 4: Simplify right side
    855,244.32x = 521,202,916,554.57
  5. Step 5: Solve for x
    x = 521,202,916,554.57/855,244.32
  6. Step 6: Final answer
    x = 609,419.91

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.