Home / 527,938.60-791,907.90-520,065.40

Finding the Fourth Proportional to 527,938.60, 791,907.90 and 520,065.40

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Solution

The fourth proportional to 527,938.60, 791,907.90 and 520,065.40 is: 780,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,938.60 : 791,907.90 = 520,065.40 : x
  2. Step 2: Convert to fraction form
    527,938.60/791,907.90 = 520,065.40/x
  3. Step 3: Cross multiply
    527,938.60x = 791,907.90 × 520,065.40
  4. Step 4: Simplify right side
    527,938.60x = 411,843,898,776.66
  5. Step 5: Solve for x
    x = 411,843,898,776.66/527,938.60
  6. Step 6: Final answer
    x = 780,098.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.