Home / 921,354.06-1,271,451.32-513,446.92

Finding the Fourth Proportional to 921,354.06, 1,271,451.32 and 513,446.92

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Solution

The fourth proportional to 921,354.06, 1,271,451.32 and 513,446.92 is: 708,547.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,354.06 : 1,271,451.32 = 513,446.92 : x
  2. Step 2: Convert to fraction form
    921,354.06/1,271,451.32 = 513,446.92/x
  3. Step 3: Cross multiply
    921,354.06x = 1,271,451.32 × 513,446.92
  4. Step 4: Simplify right side
    921,354.06x = 652,822,764,183.94
  5. Step 5: Solve for x
    x = 652,822,764,183.94/921,354.06
  6. Step 6: Final answer
    x = 708,547.12

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Half scale
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Double scale
Find fourth proportional to 921,355.06, 1,271,452.70 and 513,447.92
Similar ratio
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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.