Home / 651,059.20-977,164.80-384,486.40

Finding the Fourth Proportional to 651,059.20, 977,164.80 and 384,486.40

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Solution

The fourth proportional to 651,059.20, 977,164.80 and 384,486.40 is: 577,069.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,059.20 : 977,164.80 = 384,486.40 : x
  2. Step 2: Convert to fraction form
    651,059.20/977,164.80 = 384,486.40/x
  3. Step 3: Cross multiply
    651,059.20x = 977,164.80 × 384,486.40
  4. Step 4: Simplify right side
    651,059.20x = 375,706,576,158.72
  5. Step 5: Solve for x
    x = 375,706,576,158.72/651,059.20
  6. Step 6: Final answer
    x = 577,069.76

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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.