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Finding the Fourth Proportional to 652,854.60, 979,281.90 and 605,615.40

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Solution

The fourth proportional to 652,854.60, 979,281.90 and 605,615.40 is: 908,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,854.60 : 979,281.90 = 605,615.40 : x
  2. Step 2: Convert to fraction form
    652,854.60/979,281.90 = 605,615.40/x
  3. Step 3: Cross multiply
    652,854.60x = 979,281.90 × 605,615.40
  4. Step 4: Simplify right side
    652,854.60x = 593,068,199,581.26
  5. Step 5: Solve for x
    x = 593,068,199,581.26/652,854.60
  6. Step 6: Final answer
    x = 908,423.10

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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.