Home / 819,592.59-1,131,112.40-497,384.67

Finding the Fourth Proportional to 819,592.59, 1,131,112.40 and 497,384.67

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Solution

The fourth proportional to 819,592.59, 1,131,112.40 and 497,384.67 is: 686,436.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,592.59 : 1,131,112.40 = 497,384.67 : x
  2. Step 2: Convert to fraction form
    819,592.59/1,131,112.40 = 497,384.67/x
  3. Step 3: Cross multiply
    819,592.59x = 1,131,112.40 × 497,384.67
  4. Step 4: Simplify right side
    819,592.59x = 562,597,965,319.99
  5. Step 5: Solve for x
    x = 562,597,965,319.99/819,592.59
  6. Step 6: Final answer
    x = 686,436.13

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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.