Home / 648,931.60-895,520.34-358,542.25

Finding the Fourth Proportional to 648,931.60, 895,520.34 and 358,542.25

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Solution

The fourth proportional to 648,931.60, 895,520.34 and 358,542.25 is: 494,785.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,931.60 : 895,520.34 = 358,542.25 : x
  2. Step 2: Convert to fraction form
    648,931.60/895,520.34 = 358,542.25/x
  3. Step 3: Cross multiply
    648,931.60x = 895,520.34 × 358,542.25
  4. Step 4: Simplify right side
    648,931.60x = 321,081,877,624.37
  5. Step 5: Solve for x
    x = 321,081,877,624.37/648,931.60
  6. Step 6: Final answer
    x = 494,785.39

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Double scale
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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.