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Finding the Fourth Proportional to 627,807.60, 941,711.40 and 549,075.60

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Solution

The fourth proportional to 627,807.60, 941,711.40 and 549,075.60 is: 823,613.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,807.60 : 941,711.40 = 549,075.60 : x
  2. Step 2: Convert to fraction form
    627,807.60/941,711.40 = 549,075.60/x
  3. Step 3: Cross multiply
    627,807.60x = 941,711.40 × 549,075.60
  4. Step 4: Simplify right side
    627,807.60x = 517,070,751,981.84
  5. Step 5: Solve for x
    x = 517,070,751,981.84/627,807.60
  6. Step 6: Final answer
    x = 823,613.40

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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.