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Finding the Fourth Proportional to 547,547.36, 755,607.32 and 305,833.46

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Solution

The fourth proportional to 547,547.36, 755,607.32 and 305,833.46 is: 422,045.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,547.36 : 755,607.32 = 305,833.46 : x
  2. Step 2: Convert to fraction form
    547,547.36/755,607.32 = 305,833.46/x
  3. Step 3: Cross multiply
    547,547.36x = 755,607.32 × 305,833.46
  4. Step 4: Simplify right side
    547,547.36x = 231,090,001,436.78
  5. Step 5: Solve for x
    x = 231,090,001,436.78/547,547.36
  6. Step 6: Final answer
    x = 422,045.68

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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.