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Finding the Fourth Proportional to 720,419.33, 994,151.88 and 414,543.02

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Solution

The fourth proportional to 720,419.33, 994,151.88 and 414,543.02 is: 572,053.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,419.33 : 994,151.88 = 414,543.02 : x
  2. Step 2: Convert to fraction form
    720,419.33/994,151.88 = 414,543.02/x
  3. Step 3: Cross multiply
    720,419.33x = 994,151.88 × 414,543.02
  4. Step 4: Simplify right side
    720,419.33x = 412,118,717,703.12
  5. Step 5: Solve for x
    x = 412,118,717,703.12/720,419.33
  6. Step 6: Final answer
    x = 572,053.94

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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.