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Finding the Fourth Proportional to 461,364.40, 636,681.76 and 260,158.96

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Solution

The fourth proportional to 461,364.40, 636,681.76 and 260,158.96 is: 359,018.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,364.40 : 636,681.76 = 260,158.96 : x
  2. Step 2: Convert to fraction form
    461,364.40/636,681.76 = 260,158.96/x
  3. Step 3: Cross multiply
    461,364.40x = 636,681.76 × 260,158.96
  4. Step 4: Simplify right side
    461,364.40x = 165,638,464,532.57
  5. Step 5: Solve for x
    x = 165,638,464,532.57/461,364.40
  6. Step 6: Final answer
    x = 359,018.74

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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.