Home / 778,658.98-1,074,297.78-434,439.10

Finding the Fourth Proportional to 778,658.98, 1,074,297.78 and 434,439.10

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Solution

The fourth proportional to 778,658.98, 1,074,297.78 and 434,439.10 is: 599,385.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,658.98 : 1,074,297.78 = 434,439.10 : x
  2. Step 2: Convert to fraction form
    778,658.98/1,074,297.78 = 434,439.10/x
  3. Step 3: Cross multiply
    778,658.98x = 1,074,297.78 × 434,439.10
  4. Step 4: Simplify right side
    778,658.98x = 466,716,960,675.20
  5. Step 5: Solve for x
    x = 466,716,960,675.20/778,658.98
  6. Step 6: Final answer
    x = 599,385.58

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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.