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Finding the Fourth Proportional to 553,215.80, 829,823.70 and 553,215.80

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Solution

The fourth proportional to 553,215.80, 829,823.70 and 553,215.80 is: 829,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,215.80 : 829,823.70 = 553,215.80 : x
  2. Step 2: Convert to fraction form
    553,215.80/829,823.70 = 553,215.80/x
  3. Step 3: Cross multiply
    553,215.80x = 829,823.70 × 553,215.80
  4. Step 4: Simplify right side
    553,215.80x = 459,071,582,054.46
  5. Step 5: Solve for x
    x = 459,071,582,054.46/553,215.80
  6. Step 6: Final answer
    x = 829,823.70

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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.