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Finding the Fourth Proportional to 448,488.48, 618,957.84 and 335,114.40

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Solution

The fourth proportional to 448,488.48, 618,957.84 and 335,114.40 is: 462,490.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,488.48 : 618,957.84 = 335,114.40 : x
  2. Step 2: Convert to fraction form
    448,488.48/618,957.84 = 335,114.40/x
  3. Step 3: Cross multiply
    448,488.48x = 618,957.84 × 335,114.40
  4. Step 4: Simplify right side
    448,488.48x = 207,421,685,176.90
  5. Step 5: Solve for x
    x = 207,421,685,176.90/448,488.48
  6. Step 6: Final answer
    x = 462,490.55

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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.