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Finding the Fourth Proportional to 736,288.40, 1,102,877.40 and 611,872.40

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Solution

The fourth proportional to 736,288.40, 1,102,877.40 and 611,872.40 is: 916,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,288.40 : 1,102,877.40 = 611,872.40 : x
  2. Step 2: Convert to fraction form
    736,288.40/1,102,877.40 = 611,872.40/x
  3. Step 3: Cross multiply
    736,288.40x = 1,102,877.40 × 611,872.40
  4. Step 4: Simplify right side
    736,288.40x = 674,820,241,643.76
  5. Step 5: Solve for x
    x = 674,820,241,643.76/736,288.40
  6. Step 6: Final answer
    x = 916,516.19

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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.