Home / 778,764.37-1,074,688.58-452,107.69

Finding the Fourth Proportional to 778,764.37, 1,074,688.58 and 452,107.69

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Solution

The fourth proportional to 778,764.37, 1,074,688.58 and 452,107.69 is: 623,904.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,764.37 : 1,074,688.58 = 452,107.69 : x
  2. Step 2: Convert to fraction form
    778,764.37/1,074,688.58 = 452,107.69/x
  3. Step 3: Cross multiply
    778,764.37x = 1,074,688.58 × 452,107.69
  4. Step 4: Simplify right side
    778,764.37x = 485,874,971,373.18
  5. Step 5: Solve for x
    x = 485,874,971,373.18/778,764.37
  6. Step 6: Final answer
    x = 623,904.98

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Half scale
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Double scale
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Similar ratio
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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.