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Finding the Fourth Proportional to 713,597.60, 1,069,489.20 and 292,397.60

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Solution

The fourth proportional to 713,597.60, 1,069,489.20 and 292,397.60 is: 438,224.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,597.60 : 1,069,489.20 = 292,397.60 : x
  2. Step 2: Convert to fraction form
    713,597.60/1,069,489.20 = 292,397.60/x
  3. Step 3: Cross multiply
    713,597.60x = 1,069,489.20 × 292,397.60
  4. Step 4: Simplify right side
    713,597.60x = 312,716,075,305.92
  5. Step 5: Solve for x
    x = 312,716,075,305.92/713,597.60
  6. Step 6: Final answer
    x = 438,224.67

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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.