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Finding the Fourth Proportional to 832,807.74, 1,149,282.74 and 488,649.58

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Solution

The fourth proportional to 832,807.74, 1,149,282.74 and 488,649.58 is: 674,341.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,807.74 : 1,149,282.74 = 488,649.58 : x
  2. Step 2: Convert to fraction form
    832,807.74/1,149,282.74 = 488,649.58/x
  3. Step 3: Cross multiply
    832,807.74x = 1,149,282.74 × 488,649.58
  4. Step 4: Simplify right side
    832,807.74x = 561,596,526,550.67
  5. Step 5: Solve for x
    x = 561,596,526,550.67/832,807.74
  6. Step 6: Final answer
    x = 674,341.14

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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.