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Finding the Fourth Proportional to 577,159.80, 865,739.70 and 364,583.40

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Solution

The fourth proportional to 577,159.80, 865,739.70 and 364,583.40 is: 546,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,159.80 : 865,739.70 = 364,583.40 : x
  2. Step 2: Convert to fraction form
    577,159.80/865,739.70 = 364,583.40/x
  3. Step 3: Cross multiply
    577,159.80x = 865,739.70 × 364,583.40
  4. Step 4: Simplify right side
    577,159.80x = 315,634,323,340.98
  5. Step 5: Solve for x
    x = 315,634,323,340.98/577,159.80
  6. Step 6: Final answer
    x = 546,875.10

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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.