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Finding the Fourth Proportional to 579,201.40, 868,802.10 and 526,713.40

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Solution

The fourth proportional to 579,201.40, 868,802.10 and 526,713.40 is: 790,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,201.40 : 868,802.10 = 526,713.40 : x
  2. Step 2: Convert to fraction form
    579,201.40/868,802.10 = 526,713.40/x
  3. Step 3: Cross multiply
    579,201.40x = 868,802.10 × 526,713.40
  4. Step 4: Simplify right side
    579,201.40x = 457,609,708,018.14
  5. Step 5: Solve for x
    x = 457,609,708,018.14/579,201.40
  6. Step 6: Final answer
    x = 790,070.10

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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.