Home / 659,945.61-910,724.95-358,139.61

Finding the Fourth Proportional to 659,945.61, 910,724.95 and 358,139.61

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Solution

The fourth proportional to 659,945.61, 910,724.95 and 358,139.61 is: 494,232.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,945.61 : 910,724.95 = 358,139.61 : x
  2. Step 2: Convert to fraction form
    659,945.61/910,724.95 = 358,139.61/x
  3. Step 3: Cross multiply
    659,945.61x = 910,724.95 × 358,139.61
  4. Step 4: Simplify right side
    659,945.61x = 326,166,678,857.94
  5. Step 5: Solve for x
    x = 326,166,678,857.94/659,945.61
  6. Step 6: Final answer
    x = 494,232.67

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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.