Home / 527,526.66-727,985.80-285,815.36

Finding the Fourth Proportional to 527,526.66, 727,985.80 and 285,815.36

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Solution

The fourth proportional to 527,526.66, 727,985.80 and 285,815.36 is: 394,424.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,526.66 : 727,985.80 = 285,815.36 : x
  2. Step 2: Convert to fraction form
    527,526.66/727,985.80 = 285,815.36/x
  3. Step 3: Cross multiply
    527,526.66x = 727,985.80 × 285,815.36
  4. Step 4: Simplify right side
    527,526.66x = 208,069,523,501.89
  5. Step 5: Solve for x
    x = 208,069,523,501.89/527,526.66
  6. Step 6: Final answer
    x = 394,424.66

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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.