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Finding the Fourth Proportional to 1,194,355, 1,648,209.90 and 657,811

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Solution

The fourth proportional to 1,194,355, 1,648,209.90 and 657,811 is: 907,779.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194,355 : 1,648,209.90 = 657,811 : x
  2. Step 2: Convert to fraction form
    1,194,355/1,648,209.90 = 657,811/x
  3. Step 3: Cross multiply
    1,194,355x = 1,648,209.90 × 657,811
  4. Step 4: Simplify right side
    1,194,355x = 1,084,210,602,528.90
  5. Step 5: Solve for x
    x = 1,084,210,602,528.90/1,194,355
  6. Step 6: Final answer
    x = 907,779.18

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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.