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Finding the Fourth Proportional to 304,417.20, 427,117.20 and 304,417.20

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Solution

The fourth proportional to 304,417.20, 427,117.20 and 304,417.20 is: 427,117.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,417.20 : 427,117.20 = 304,417.20 : x
  2. Step 2: Convert to fraction form
    304,417.20/427,117.20 = 304,417.20/x
  3. Step 3: Cross multiply
    304,417.20x = 427,117.20 × 304,417.20
  4. Step 4: Simplify right side
    304,417.20x = 130,021,822,095.84
  5. Step 5: Solve for x
    x = 130,021,822,095.84/304,417.20
  6. Step 6: Final answer
    x = 427,117.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.