Home / 912,853.40-1,369,280.10-414,217.40

Finding the Fourth Proportional to 912,853.40, 1,369,280.10 and 414,217.40

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Solution

The fourth proportional to 912,853.40, 1,369,280.10 and 414,217.40 is: 621,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,853.40 : 1,369,280.10 = 414,217.40 : x
  2. Step 2: Convert to fraction form
    912,853.40/1,369,280.10 = 414,217.40/x
  3. Step 3: Cross multiply
    912,853.40x = 1,369,280.10 × 414,217.40
  4. Step 4: Simplify right side
    912,853.40x = 567,179,642,893.74
  5. Step 5: Solve for x
    x = 567,179,642,893.74/912,853.40
  6. Step 6: Final answer
    x = 621,326.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.