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Finding the Fourth Proportional to 673,887.36, 929,574.72 and 435,423.36

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Solution

The fourth proportional to 673,887.36, 929,574.72 and 435,423.36 is: 600,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,887.36 : 929,574.72 = 435,423.36 : x
  2. Step 2: Convert to fraction form
    673,887.36/929,574.72 = 435,423.36/x
  3. Step 3: Cross multiply
    673,887.36x = 929,574.72 × 435,423.36
  4. Step 4: Simplify right side
    673,887.36x = 404,758,547,953.46
  5. Step 5: Solve for x
    x = 404,758,547,953.46/673,887.36
  6. Step 6: Final answer
    x = 600,632.35

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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.