Home / 648,730.76-895,244.89-358,362.30

Finding the Fourth Proportional to 648,730.76, 895,244.89 and 358,362.30

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Solution

The fourth proportional to 648,730.76, 895,244.89 and 358,362.30 is: 494,538.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,730.76 : 895,244.89 = 358,362.30 : x
  2. Step 2: Convert to fraction form
    648,730.76/895,244.89 = 358,362.30/x
  3. Step 3: Cross multiply
    648,730.76x = 895,244.89 × 358,362.30
  4. Step 4: Simplify right side
    648,730.76x = 320,822,016,051.84
  5. Step 5: Solve for x
    x = 320,822,016,051.84/648,730.76
  6. Step 6: Final answer
    x = 494,538.01

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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.