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Finding the Fourth Proportional to 634,482.21, 875,794.80 and 567,221.70

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Solution

The fourth proportional to 634,482.21, 875,794.80 and 567,221.70 is: 782,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,482.21 : 875,794.80 = 567,221.70 : x
  2. Step 2: Convert to fraction form
    634,482.21/875,794.80 = 567,221.70/x
  3. Step 3: Cross multiply
    634,482.21x = 875,794.80 × 567,221.70
  4. Step 4: Simplify right side
    634,482.21x = 496,769,815,307.16
  5. Step 5: Solve for x
    x = 496,769,815,307.16/634,482.21
  6. Step 6: Final answer
    x = 782,953.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.