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Finding the Fourth Proportional to 626,976.84, 865,492.76 and 423,303.52

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Solution

The fourth proportional to 626,976.84, 865,492.76 and 423,303.52 is: 584,337.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,976.84 : 865,492.76 = 423,303.52 : x
  2. Step 2: Convert to fraction form
    626,976.84/865,492.76 = 423,303.52/x
  3. Step 3: Cross multiply
    626,976.84x = 865,492.76 × 423,303.52
  4. Step 4: Simplify right side
    626,976.84x = 366,366,131,842.52
  5. Step 5: Solve for x
    x = 366,366,131,842.52/626,976.84
  6. Step 6: Final answer
    x = 584,337.58

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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.