Home / 527,881.20-791,821.80-517,383.60

Finding the Fourth Proportional to 527,881.20, 791,821.80 and 517,383.60

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Solution

The fourth proportional to 527,881.20, 791,821.80 and 517,383.60 is: 776,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,881.20 : 791,821.80 = 517,383.60 : x
  2. Step 2: Convert to fraction form
    527,881.20/791,821.80 = 517,383.60/x
  3. Step 3: Cross multiply
    527,881.20x = 791,821.80 × 517,383.60
  4. Step 4: Simplify right side
    527,881.20x = 409,675,613,442.48
  5. Step 5: Solve for x
    x = 409,675,613,442.48/527,881.20
  6. Step 6: Final answer
    x = 776,075.40

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1.5x scale

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.