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Finding the Fourth Proportional to 986,666.64, 1,361,603.64 and 533,957.64

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Solution

The fourth proportional to 986,666.64, 1,361,603.64 and 533,957.64 is: 736,863.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,666.64 : 1,361,603.64 = 533,957.64 : x
  2. Step 2: Convert to fraction form
    986,666.64/1,361,603.64 = 533,957.64/x
  3. Step 3: Cross multiply
    986,666.64x = 1,361,603.64 × 533,957.64
  4. Step 4: Simplify right side
    986,666.64x = 727,038,666,229.81
  5. Step 5: Solve for x
    x = 727,038,666,229.81/986,666.64
  6. Step 6: Final answer
    x = 736,863.53

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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.