Home / 623,390.48-935,085.72-499,518.80

Finding the Fourth Proportional to 623,390.48, 935,085.72 and 499,518.80

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Solution

The fourth proportional to 623,390.48, 935,085.72 and 499,518.80 is: 749,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,390.48 : 935,085.72 = 499,518.80 : x
  2. Step 2: Convert to fraction form
    623,390.48/935,085.72 = 499,518.80/x
  3. Step 3: Cross multiply
    623,390.48x = 935,085.72 × 499,518.80
  4. Step 4: Simplify right side
    623,390.48x = 467,092,896,751.54
  5. Step 5: Solve for x
    x = 467,092,896,751.54/623,390.48
  6. Step 6: Final answer
    x = 749,278.20

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Half scale
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Double scale
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Similar ratio
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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.