Home / 811,397.59-1,119,714.84-448,821.15

Finding the Fourth Proportional to 811,397.59, 1,119,714.84 and 448,821.15

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Solution

The fourth proportional to 811,397.59, 1,119,714.84 and 448,821.15 is: 619,365.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,397.59 : 1,119,714.84 = 448,821.15 : x
  2. Step 2: Convert to fraction form
    811,397.59/1,119,714.84 = 448,821.15/x
  3. Step 3: Cross multiply
    811,397.59x = 1,119,714.84 × 448,821.15
  4. Step 4: Simplify right side
    811,397.59x = 502,551,697,961.94
  5. Step 5: Solve for x
    x = 502,551,697,961.94/811,397.59
  6. Step 6: Final answer
    x = 619,365.53

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Double scale
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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.