Home / 527,741.37-728,280.18-286,021.35

Finding the Fourth Proportional to 527,741.37, 728,280.18 and 286,021.35

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Solution

The fourth proportional to 527,741.37, 728,280.18 and 286,021.35 is: 394,707.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,741.37 : 728,280.18 = 286,021.35 : x
  2. Step 2: Convert to fraction form
    527,741.37/728,280.18 = 286,021.35/x
  3. Step 3: Cross multiply
    527,741.37x = 728,280.18 × 286,021.35
  4. Step 4: Simplify right side
    527,741.37x = 208,303,680,261.84
  5. Step 5: Solve for x
    x = 208,303,680,261.84/527,741.37
  6. Step 6: Final answer
    x = 394,707.89

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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.