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Finding the Fourth Proportional to 577,657.60, 866,486.40 and 297,721.60

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Solution

The fourth proportional to 577,657.60, 866,486.40 and 297,721.60 is: 446,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,657.60 : 866,486.40 = 297,721.60 : x
  2. Step 2: Convert to fraction form
    577,657.60/866,486.40 = 297,721.60/x
  3. Step 3: Cross multiply
    577,657.60x = 866,486.40 × 297,721.60
  4. Step 4: Simplify right side
    577,657.60x = 257,971,717,386.24
  5. Step 5: Solve for x
    x = 257,971,717,386.24/577,657.60
  6. Step 6: Final answer
    x = 446,582.40

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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.