Home / 717,386.14-990,037.63-395,096.15

Finding the Fourth Proportional to 717,386.14, 990,037.63 and 395,096.15

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Solution

The fourth proportional to 717,386.14, 990,037.63 and 395,096.15 is: 545,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,386.14 : 990,037.63 = 395,096.15 : x
  2. Step 2: Convert to fraction form
    717,386.14/990,037.63 = 395,096.15/x
  3. Step 3: Cross multiply
    717,386.14x = 990,037.63 × 395,096.15
  4. Step 4: Simplify right side
    717,386.14x = 391,160,056,961.61
  5. Step 5: Solve for x
    x = 391,160,056,961.61/717,386.14
  6. Step 6: Final answer
    x = 545,257.34

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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.