Home / 579,147.60-868,721.40-558,152.40

Finding the Fourth Proportional to 579,147.60, 868,721.40 and 558,152.40

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Solution

The fourth proportional to 579,147.60, 868,721.40 and 558,152.40 is: 837,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,147.60 : 868,721.40 = 558,152.40 : x
  2. Step 2: Convert to fraction form
    579,147.60/868,721.40 = 558,152.40/x
  3. Step 3: Cross multiply
    579,147.60x = 868,721.40 × 558,152.40
  4. Step 4: Simplify right side
    579,147.60x = 484,878,934,341.36
  5. Step 5: Solve for x
    x = 484,878,934,341.36/579,147.60
  6. Step 6: Final answer
    x = 837,228.60

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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.