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Finding the Fourth Proportional to 706,159.40, 1,059,239.10 and 654,319.40

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Solution

The fourth proportional to 706,159.40, 1,059,239.10 and 654,319.40 is: 981,479.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,159.40 : 1,059,239.10 = 654,319.40 : x
  2. Step 2: Convert to fraction form
    706,159.40/1,059,239.10 = 654,319.40/x
  3. Step 3: Cross multiply
    706,159.40x = 1,059,239.10 × 654,319.40
  4. Step 4: Simplify right side
    706,159.40x = 693,080,692,368.54
  5. Step 5: Solve for x
    x = 693,080,692,368.54/706,159.40
  6. Step 6: Final answer
    x = 981,479.10

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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.