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Finding the Fourth Proportional to 633,341.53, 874,011.31 and 346,862.30

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Solution

The fourth proportional to 633,341.53, 874,011.31 and 346,862.30 is: 478,669.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,341.53 : 874,011.31 = 346,862.30 : x
  2. Step 2: Convert to fraction form
    633,341.53/874,011.31 = 346,862.30/x
  3. Step 3: Cross multiply
    633,341.53x = 874,011.31 × 346,862.30
  4. Step 4: Simplify right side
    633,341.53x = 303,161,574,842.80
  5. Step 5: Solve for x
    x = 303,161,574,842.80/633,341.53
  6. Step 6: Final answer
    x = 478,669.97

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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.