Home / 697,451.22-962,482.18-391,528.19

Finding the Fourth Proportional to 697,451.22, 962,482.18 and 391,528.19

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Solution

The fourth proportional to 697,451.22, 962,482.18 and 391,528.19 is: 540,308.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,451.22 : 962,482.18 = 391,528.19 : x
  2. Step 2: Convert to fraction form
    697,451.22/962,482.18 = 391,528.19/x
  3. Step 3: Cross multiply
    697,451.22x = 962,482.18 × 391,528.19
  4. Step 4: Simplify right side
    697,451.22x = 376,838,904,918.69
  5. Step 5: Solve for x
    x = 376,838,904,918.69/697,451.22
  6. Step 6: Final answer
    x = 540,308.62

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Double scale
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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.