Home / 584,187.20-872,054.88-513,328.40

Finding the Fourth Proportional to 584,187.20, 872,054.88 and 513,328.40

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Solution

The fourth proportional to 584,187.20, 872,054.88 and 513,328.40 is: 766,279.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,187.20 : 872,054.88 = 513,328.40 : x
  2. Step 2: Convert to fraction form
    584,187.20/872,054.88 = 513,328.40/x
  3. Step 3: Cross multiply
    584,187.20x = 872,054.88 × 513,328.40
  4. Step 4: Simplify right side
    584,187.20x = 447,650,536,262.59
  5. Step 5: Solve for x
    x = 447,650,536,262.59/584,187.20
  6. Step 6: Final answer
    x = 766,279.26

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.