Home / 839,678.10-1,158,712.04-477,051.62

Finding the Fourth Proportional to 839,678.10, 1,158,712.04 and 477,051.62

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Solution

The fourth proportional to 839,678.10, 1,158,712.04 and 477,051.62 is: 658,306.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,678.10 : 1,158,712.04 = 477,051.62 : x
  2. Step 2: Convert to fraction form
    839,678.10/1,158,712.04 = 477,051.62/x
  3. Step 3: Cross multiply
    839,678.10x = 1,158,712.04 × 477,051.62
  4. Step 4: Simplify right side
    839,678.10x = 552,765,455,795.51
  5. Step 5: Solve for x
    x = 552,765,455,795.51/839,678.10
  6. Step 6: Final answer
    x = 658,306.39

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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.