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Finding the Fourth Proportional to 1,891,411.60, 2,837,117.40 and 944,928.40

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Solution

The fourth proportional to 1,891,411.60, 2,837,117.40 and 944,928.40 is: 1,417,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,411.60 : 2,837,117.40 = 944,928.40 : x
  2. Step 2: Convert to fraction form
    1,891,411.60/2,837,117.40 = 944,928.40/x
  3. Step 3: Cross multiply
    1,891,411.60x = 2,837,117.40 × 944,928.40
  4. Step 4: Simplify right side
    1,891,411.60x = 2,680,872,805,394.16
  5. Step 5: Solve for x
    x = 2,680,872,805,394.16/1,891,411.60
  6. Step 6: Final answer
    x = 1,417,392.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.