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Finding the Fourth Proportional to 586,587.60, 879,881.40 and 409,640.40

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Solution

The fourth proportional to 586,587.60, 879,881.40 and 409,640.40 is: 614,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,587.60 : 879,881.40 = 409,640.40 : x
  2. Step 2: Convert to fraction form
    586,587.60/879,881.40 = 409,640.40/x
  3. Step 3: Cross multiply
    586,587.60x = 879,881.40 × 409,640.40
  4. Step 4: Simplify right side
    586,587.60x = 360,434,968,648.56
  5. Step 5: Solve for x
    x = 360,434,968,648.56/586,587.60
  6. Step 6: Final answer
    x = 614,460.60

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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.