Home / 864,783.54-1,297,042.25-288,416.97

Finding the Fourth Proportional to 864,783.54, 1,297,042.25 and 288,416.97

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Solution

The fourth proportional to 864,783.54, 1,297,042.25 and 288,416.97 is: 432,581.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,783.54 : 1,297,042.25 = 288,416.97 : x
  2. Step 2: Convert to fraction form
    864,783.54/1,297,042.25 = 288,416.97/x
  3. Step 3: Cross multiply
    864,783.54x = 1,297,042.25 × 288,416.97
  4. Step 4: Simplify right side
    864,783.54x = 374,088,994,264.90
  5. Step 5: Solve for x
    x = 374,088,994,264.90/864,783.54
  6. Step 6: Final answer
    x = 432,581.08

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.