Home / 939,394.11-1,296,226.08-525,909.45

Finding the Fourth Proportional to 939,394.11, 1,296,226.08 and 525,909.45

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Solution

The fourth proportional to 939,394.11, 1,296,226.08 and 525,909.45 is: 725,677.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,394.11 : 1,296,226.08 = 525,909.45 : x
  2. Step 2: Convert to fraction form
    939,394.11/1,296,226.08 = 525,909.45/x
  3. Step 3: Cross multiply
    939,394.11x = 1,296,226.08 × 525,909.45
  4. Step 4: Simplify right side
    939,394.11x = 681,697,544,808.46
  5. Step 5: Solve for x
    x = 681,697,544,808.46/939,394.11
  6. Step 6: Final answer
    x = 725,677.90

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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.