Home / 651,418.80-977,128.20-539,444.40

Finding the Fourth Proportional to 651,418.80, 977,128.20 and 539,444.40

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Solution

The fourth proportional to 651,418.80, 977,128.20 and 539,444.40 is: 809,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,418.80 : 977,128.20 = 539,444.40 : x
  2. Step 2: Convert to fraction form
    651,418.80/977,128.20 = 539,444.40/x
  3. Step 3: Cross multiply
    651,418.80x = 977,128.20 × 539,444.40
  4. Step 4: Simplify right side
    651,418.80x = 527,106,335,572.08
  5. Step 5: Solve for x
    x = 527,106,335,572.08/651,418.80
  6. Step 6: Final answer
    x = 809,166.60

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Double scale
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Similar ratio
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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.