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Finding the Fourth Proportional to 911,352.40, 1,364,404.20 and 557,058.40

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Solution

The fourth proportional to 911,352.40, 1,364,404.20 and 557,058.40 is: 833,983.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,352.40 : 1,364,404.20 = 557,058.40 : x
  2. Step 2: Convert to fraction form
    911,352.40/1,364,404.20 = 557,058.40/x
  3. Step 3: Cross multiply
    911,352.40x = 1,364,404.20 × 557,058.40
  4. Step 4: Simplify right side
    911,352.40x = 760,052,820,605.28
  5. Step 5: Solve for x
    x = 760,052,820,605.28/911,352.40
  6. Step 6: Final answer
    x = 833,983.45

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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.