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Finding the Fourth Proportional to 607,330.80, 910,996.20 and 561,711.60

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Solution

The fourth proportional to 607,330.80, 910,996.20 and 561,711.60 is: 842,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,330.80 : 910,996.20 = 561,711.60 : x
  2. Step 2: Convert to fraction form
    607,330.80/910,996.20 = 561,711.60/x
  3. Step 3: Cross multiply
    607,330.80x = 910,996.20 × 561,711.60
  4. Step 4: Simplify right side
    607,330.80x = 511,717,133,095.92
  5. Step 5: Solve for x
    x = 511,717,133,095.92/607,330.80
  6. Step 6: Final answer
    x = 842,567.40

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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.