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Finding the Fourth Proportional to 836,907.84, 1,255,070.88 and 357,116.22

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Solution

The fourth proportional to 836,907.84, 1,255,070.88 and 357,116.22 is: 535,550.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,907.84 : 1,255,070.88 = 357,116.22 : x
  2. Step 2: Convert to fraction form
    836,907.84/1,255,070.88 = 357,116.22/x
  3. Step 3: Cross multiply
    836,907.84x = 1,255,070.88 × 357,116.22
  4. Step 4: Simplify right side
    836,907.84x = 448,206,168,497.67
  5. Step 5: Solve for x
    x = 448,206,168,497.67/836,907.84
  6. Step 6: Final answer
    x = 535,550.21

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Double scale
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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.