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Finding the Fourth Proportional to 626,686.16, 864,735.68 and 358,362.32

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Solution

The fourth proportional to 626,686.16, 864,735.68 and 358,362.32 is: 494,487.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,686.16 : 864,735.68 = 358,362.32 : x
  2. Step 2: Convert to fraction form
    626,686.16/864,735.68 = 358,362.32/x
  3. Step 3: Cross multiply
    626,686.16x = 864,735.68 × 358,362.32
  4. Step 4: Simplify right side
    626,686.16x = 309,888,684,471.58
  5. Step 5: Solve for x
    x = 309,888,684,471.58/626,686.16
  6. Step 6: Final answer
    x = 494,487.84

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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.