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Finding the Fourth Proportional to 556,069.59, 767,117.88 and 326,552.40

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Solution

The fourth proportional to 556,069.59, 767,117.88 and 326,552.40 is: 450,490.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,069.59 : 767,117.88 = 326,552.40 : x
  2. Step 2: Convert to fraction form
    556,069.59/767,117.88 = 326,552.40/x
  3. Step 3: Cross multiply
    556,069.59x = 767,117.88 × 326,552.40
  4. Step 4: Simplify right side
    556,069.59x = 250,504,184,796.91
  5. Step 5: Solve for x
    x = 250,504,184,796.91/556,069.59
  6. Step 6: Final answer
    x = 450,490.71

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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.