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Finding the Fourth Proportional to 935,684, 1,291,165.44 and 553,643.84

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Solution

The fourth proportional to 935,684, 1,291,165.44 and 553,643.84 is: 763,982.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,684 : 1,291,165.44 = 553,643.84 : x
  2. Step 2: Convert to fraction form
    935,684/1,291,165.44 = 553,643.84/x
  3. Step 3: Cross multiply
    935,684x = 1,291,165.44 × 553,643.84
  4. Step 4: Simplify right side
    935,684x = 714,845,792,276.89
  5. Step 5: Solve for x
    x = 714,845,792,276.89/935,684
  6. Step 6: Final answer
    x = 763,982.06

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1.5x scale

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.