Home / 939,567.20-1,296,596.16-509,836.40

Finding the Fourth Proportional to 939,567.20, 1,296,596.16 and 509,836.40

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Solution

The fourth proportional to 939,567.20, 1,296,596.16 and 509,836.40 is: 703,570.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,567.20 : 1,296,596.16 = 509,836.40 : x
  2. Step 2: Convert to fraction form
    939,567.20/1,296,596.16 = 509,836.40/x
  3. Step 3: Cross multiply
    939,567.20x = 1,296,596.16 × 509,836.40
  4. Step 4: Simplify right side
    939,567.20x = 661,051,918,468.22
  5. Step 5: Solve for x
    x = 661,051,918,468.22/939,567.20
  6. Step 6: Final answer
    x = 703,570.66

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Double scale
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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.