Home / 917,666.20-1,266,344.11-509,793.67

Finding the Fourth Proportional to 917,666.20, 1,266,344.11 and 509,793.67

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Solution

The fourth proportional to 917,666.20, 1,266,344.11 and 509,793.67 is: 703,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,666.20 : 1,266,344.11 = 509,793.67 : x
  2. Step 2: Convert to fraction form
    917,666.20/1,266,344.11 = 509,793.67/x
  3. Step 3: Cross multiply
    917,666.20x = 1,266,344.11 × 509,793.67
  4. Step 4: Simplify right side
    917,666.20x = 645,574,211,319.78
  5. Step 5: Solve for x
    x = 645,574,211,319.78/917,666.20
  6. Step 6: Final answer
    x = 703,495.68

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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.