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Finding the Fourth Proportional to 698,065.68, 963,330.08 and 396,259.68

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Solution

The fourth proportional to 698,065.68, 963,330.08 and 396,259.68 is: 546,838.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,065.68 : 963,330.08 = 396,259.68 : x
  2. Step 2: Convert to fraction form
    698,065.68/963,330.08 = 396,259.68/x
  3. Step 3: Cross multiply
    698,065.68x = 963,330.08 × 396,259.68
  4. Step 4: Simplify right side
    698,065.68x = 381,728,869,235.17
  5. Step 5: Solve for x
    x = 381,728,869,235.17/698,065.68
  6. Step 6: Final answer
    x = 546,838.04

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Double scale
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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.