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Finding the Fourth Proportional to 662,155.68, 993,228.30 and 438,516.96

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Solution

The fourth proportional to 662,155.68, 993,228.30 and 438,516.96 is: 657,771.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,155.68 : 993,228.30 = 438,516.96 : x
  2. Step 2: Convert to fraction form
    662,155.68/993,228.30 = 438,516.96/x
  3. Step 3: Cross multiply
    662,155.68x = 993,228.30 × 438,516.96
  4. Step 4: Simplify right side
    662,155.68x = 435,547,454,701.97
  5. Step 5: Solve for x
    x = 435,547,454,701.97/662,155.68
  6. Step 6: Final answer
    x = 657,771.98

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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.