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Finding the Fourth Proportional to 549,070.60, 823,605.90 and 528,075.40

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Solution

The fourth proportional to 549,070.60, 823,605.90 and 528,075.40 is: 792,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,070.60 : 823,605.90 = 528,075.40 : x
  2. Step 2: Convert to fraction form
    549,070.60/823,605.90 = 528,075.40/x
  3. Step 3: Cross multiply
    549,070.60x = 823,605.90 × 528,075.40
  4. Step 4: Simplify right side
    549,070.60x = 434,926,015,084.86
  5. Step 5: Solve for x
    x = 434,926,015,084.86/549,070.60
  6. Step 6: Final answer
    x = 792,113.10

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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.