Home / 891,549.72-1,230,423.48-509,502.42

Finding the Fourth Proportional to 891,549.72, 1,230,423.48 and 509,502.42

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Solution

The fourth proportional to 891,549.72, 1,230,423.48 and 509,502.42 is: 703,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,549.72 : 1,230,423.48 = 509,502.42 : x
  2. Step 2: Convert to fraction form
    891,549.72/1,230,423.48 = 509,502.42/x
  3. Step 3: Cross multiply
    891,549.72x = 1,230,423.48 × 509,502.42
  4. Step 4: Simplify right side
    891,549.72x = 626,903,740,684.82
  5. Step 5: Solve for x
    x = 626,903,740,684.82/891,549.72
  6. Step 6: Final answer
    x = 703,161.84

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Half scale
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Double scale
Find fourth proportional to 891,550.72, 1,230,424.86 and 509,503.42
Similar ratio
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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.