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Finding the Fourth Proportional to 983,166, 1,356,752.80 and 553,444.80

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Solution

The fourth proportional to 983,166, 1,356,752.80 and 553,444.80 is: 763,744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,166 : 1,356,752.80 = 553,444.80 : x
  2. Step 2: Convert to fraction form
    983,166/1,356,752.80 = 553,444.80/x
  3. Step 3: Cross multiply
    983,166x = 1,356,752.80 × 553,444.80
  4. Step 4: Simplify right side
    983,166x = 750,887,782,045.44
  5. Step 5: Solve for x
    x = 750,887,782,045.44/983,166
  6. Step 6: Final answer
    x = 763,744.66

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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.