Home / 527,607.15-728,054.76-298,185.18

Finding the Fourth Proportional to 527,607.15, 728,054.76 and 298,185.18

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Solution

The fourth proportional to 527,607.15, 728,054.76 and 298,185.18 is: 411,471.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,607.15 : 728,054.76 = 298,185.18 : x
  2. Step 2: Convert to fraction form
    527,607.15/728,054.76 = 298,185.18/x
  3. Step 3: Cross multiply
    527,607.15x = 728,054.76 × 298,185.18
  4. Step 4: Simplify right side
    527,607.15x = 217,095,139,660.46
  5. Step 5: Solve for x
    x = 217,095,139,660.46/527,607.15
  6. Step 6: Final answer
    x = 411,471.19

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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.