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Finding the Fourth Proportional to 507,155.04, 699,874.25 and 316,169.19

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Solution

The fourth proportional to 507,155.04, 699,874.25 and 316,169.19 is: 436,313.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,155.04 : 699,874.25 = 316,169.19 : x
  2. Step 2: Convert to fraction form
    507,155.04/699,874.25 = 316,169.19/x
  3. Step 3: Cross multiply
    507,155.04x = 699,874.25 × 316,169.19
  4. Step 4: Simplify right side
    507,155.04x = 221,278,673,143.51
  5. Step 5: Solve for x
    x = 221,278,673,143.51/507,155.04
  6. Step 6: Final answer
    x = 436,313.66

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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.