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Finding the Fourth Proportional to 581,703.40, 872,555.10 and 476,727.40

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Solution

The fourth proportional to 581,703.40, 872,555.10 and 476,727.40 is: 715,091.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,703.40 : 872,555.10 = 476,727.40 : x
  2. Step 2: Convert to fraction form
    581,703.40/872,555.10 = 476,727.40/x
  3. Step 3: Cross multiply
    581,703.40x = 872,555.10 × 476,727.40
  4. Step 4: Simplify right side
    581,703.40x = 415,970,924,179.74
  5. Step 5: Solve for x
    x = 415,970,924,179.74/581,703.40
  6. Step 6: Final answer
    x = 715,091.10

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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.