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Finding the Fourth Proportional to 660,345.84, 910,853.80 and 453,514.40

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Solution

The fourth proportional to 660,345.84, 910,853.80 and 453,514.40 is: 625,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,345.84 : 910,853.80 = 453,514.40 : x
  2. Step 2: Convert to fraction form
    660,345.84/910,853.80 = 453,514.40/x
  3. Step 3: Cross multiply
    660,345.84x = 910,853.80 × 453,514.40
  4. Step 4: Simplify right side
    660,345.84x = 413,085,314,594.72
  5. Step 5: Solve for x
    x = 413,085,314,594.72/660,345.84
  6. Step 6: Final answer
    x = 625,559.05

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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.