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Finding the Fourth Proportional to 562,836.69, 776,189.85 and 521,037.66

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Solution

The fourth proportional to 562,836.69, 776,189.85 and 521,037.66 is: 718,546.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,836.69 : 776,189.85 = 521,037.66 : x
  2. Step 2: Convert to fraction form
    562,836.69/776,189.85 = 521,037.66/x
  3. Step 3: Cross multiply
    562,836.69x = 776,189.85 × 521,037.66
  4. Step 4: Simplify right side
    562,836.69x = 404,424,143,159.75
  5. Step 5: Solve for x
    x = 404,424,143,159.75/562,836.69
  6. Step 6: Final answer
    x = 718,546.16

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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.