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Finding the Fourth Proportional to 686,696.72, 947,120.84 and 601,666.16

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Solution

The fourth proportional to 686,696.72, 947,120.84 and 601,666.16 is: 829,843.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,696.72 : 947,120.84 = 601,666.16 : x
  2. Step 2: Convert to fraction form
    686,696.72/947,120.84 = 601,666.16/x
  3. Step 3: Cross multiply
    686,696.72x = 947,120.84 × 601,666.16
  4. Step 4: Simplify right side
    686,696.72x = 569,850,558,858.77
  5. Step 5: Solve for x
    x = 569,850,558,858.77/686,696.72
  6. Step 6: Final answer
    x = 829,843.13

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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.