Home / 838,355.16-1,157,089.50-475,812.96

Finding the Fourth Proportional to 838,355.16, 1,157,089.50 and 475,812.96

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Solution

The fourth proportional to 838,355.16, 1,157,089.50 and 475,812.96 is: 656,712.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,355.16 : 1,157,089.50 = 475,812.96 : x
  2. Step 2: Convert to fraction form
    838,355.16/1,157,089.50 = 475,812.96/x
  3. Step 3: Cross multiply
    838,355.16x = 1,157,089.50 × 475,812.96
  4. Step 4: Simplify right side
    838,355.16x = 550,558,179,979.92
  5. Step 5: Solve for x
    x = 550,558,179,979.92/838,355.16
  6. Step 6: Final answer
    x = 656,712.34

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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.