Home / 817,326.51-1,127,916.19-454,765.65

Finding the Fourth Proportional to 817,326.51, 1,127,916.19 and 454,765.65

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Solution

The fourth proportional to 817,326.51, 1,127,916.19 and 454,765.65 is: 627,579.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,326.51 : 1,127,916.19 = 454,765.65 : x
  2. Step 2: Convert to fraction form
    817,326.51/1,127,916.19 = 454,765.65/x
  3. Step 3: Cross multiply
    817,326.51x = 1,127,916.19 × 454,765.65
  4. Step 4: Simplify right side
    817,326.51x = 512,937,539,290.87
  5. Step 5: Solve for x
    x = 512,937,539,290.87/817,326.51
  6. Step 6: Final answer
    x = 627,579.72

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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.