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Finding the Fourth Proportional to 1,008,058.40, 1,413,148 and 1,008,058.40

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Solution

The fourth proportional to 1,008,058.40, 1,413,148 and 1,008,058.40 is: 1,413,148

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,058.40 : 1,413,148 = 1,008,058.40 : x
  2. Step 2: Convert to fraction form
    1,008,058.40/1,413,148 = 1,008,058.40/x
  3. Step 3: Cross multiply
    1,008,058.40x = 1,413,148 × 1,008,058.40
  4. Step 4: Simplify right side
    1,008,058.40x = 1,424,535,711,843.20
  5. Step 5: Solve for x
    x = 1,424,535,711,843.20/1,008,058.40
  6. Step 6: Final answer
    x = 1,413,148

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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.