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Finding the Fourth Proportional to 484,628.40, 727,088.40 and 260,096.40

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Solution

The fourth proportional to 484,628.40, 727,088.40 and 260,096.40 is: 390,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,628.40 : 727,088.40 = 260,096.40 : x
  2. Step 2: Convert to fraction form
    484,628.40/727,088.40 = 260,096.40/x
  3. Step 3: Cross multiply
    484,628.40x = 727,088.40 × 260,096.40
  4. Step 4: Simplify right side
    484,628.40x = 189,113,075,321.76
  5. Step 5: Solve for x
    x = 189,113,075,321.76/484,628.40
  6. Step 6: Final answer
    x = 390,222.85

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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.