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Finding the Fourth Proportional to 692,906.60, 1,038,776.70 and 360,482.60

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Solution

The fourth proportional to 692,906.60, 1,038,776.70 and 360,482.60 is: 540,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,906.60 : 1,038,776.70 = 360,482.60 : x
  2. Step 2: Convert to fraction form
    692,906.60/1,038,776.70 = 360,482.60/x
  3. Step 3: Cross multiply
    692,906.60x = 1,038,776.70 × 360,482.60
  4. Step 4: Simplify right side
    692,906.60x = 374,460,925,635.42
  5. Step 5: Solve for x
    x = 374,460,925,635.42/692,906.60
  6. Step 6: Final answer
    x = 540,420.49

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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.