Home / 917,501.23-1,376,251.85-286,469.11

Finding the Fourth Proportional to 917,501.23, 1,376,251.85 and 286,469.11

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Solution

The fourth proportional to 917,501.23, 1,376,251.85 and 286,469.11 is: 429,703.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,501.23 : 1,376,251.85 = 286,469.11 : x
  2. Step 2: Convert to fraction form
    917,501.23/1,376,251.85 = 286,469.11/x
  3. Step 3: Cross multiply
    917,501.23x = 1,376,251.85 × 286,469.11
  4. Step 4: Simplify right side
    917,501.23x = 394,253,642,605.35
  5. Step 5: Solve for x
    x = 394,253,642,605.35/917,501.23
  6. Step 6: Final answer
    x = 429,703.67

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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.