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Finding the Fourth Proportional to 453,962.73, 626,543.47 and 346,329.53

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Solution

The fourth proportional to 453,962.73, 626,543.47 and 346,329.53 is: 477,991.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,962.73 : 626,543.47 = 346,329.53 : x
  2. Step 2: Convert to fraction form
    453,962.73/626,543.47 = 346,329.53/x
  3. Step 3: Cross multiply
    453,962.73x = 626,543.47 × 346,329.53
  4. Step 4: Simplify right side
    453,962.73x = 216,990,505,489.67
  5. Step 5: Solve for x
    x = 216,990,505,489.67/453,962.73
  6. Step 6: Final answer
    x = 477,991.89

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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.