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Finding the Fourth Proportional to 676,563.33, 933,303.40 and 418,357.74

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Solution

The fourth proportional to 676,563.33, 933,303.40 and 418,357.74 is: 577,114.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,563.33 : 933,303.40 = 418,357.74 : x
  2. Step 2: Convert to fraction form
    676,563.33/933,303.40 = 418,357.74/x
  3. Step 3: Cross multiply
    676,563.33x = 933,303.40 × 418,357.74
  4. Step 4: Simplify right side
    676,563.33x = 390,454,703,612.31
  5. Step 5: Solve for x
    x = 390,454,703,612.31/676,563.33
  6. Step 6: Final answer
    x = 577,114.79

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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.