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Finding the Fourth Proportional to 626,210.16, 864,171.69 and 339,730.25

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Solution

The fourth proportional to 626,210.16, 864,171.69 and 339,730.25 is: 468,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,210.16 : 864,171.69 = 339,730.25 : x
  2. Step 2: Convert to fraction form
    626,210.16/864,171.69 = 339,730.25/x
  3. Step 3: Cross multiply
    626,210.16x = 864,171.69 × 339,730.25
  4. Step 4: Simplify right side
    626,210.16x = 293,585,258,691.78
  5. Step 5: Solve for x
    x = 293,585,258,691.78/626,210.16
  6. Step 6: Final answer
    x = 468,828.64

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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.