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Finding the Fourth Proportional to 590,543.40, 885,815.10 and 433,079.40

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Solution

The fourth proportional to 590,543.40, 885,815.10 and 433,079.40 is: 649,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,543.40 : 885,815.10 = 433,079.40 : x
  2. Step 2: Convert to fraction form
    590,543.40/885,815.10 = 433,079.40/x
  3. Step 3: Cross multiply
    590,543.40x = 885,815.10 × 433,079.40
  4. Step 4: Simplify right side
    590,543.40x = 383,628,272,018.94
  5. Step 5: Solve for x
    x = 383,628,272,018.94/590,543.40
  6. Step 6: Final answer
    x = 649,619.10

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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.