Home / 991,510.10-1,487,265.15-243,556.10

Finding the Fourth Proportional to 991,510.10, 1,487,265.15 and 243,556.10

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Solution

The fourth proportional to 991,510.10, 1,487,265.15 and 243,556.10 is: 365,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,510.10 : 1,487,265.15 = 243,556.10 : x
  2. Step 2: Convert to fraction form
    991,510.10/1,487,265.15 = 243,556.10/x
  3. Step 3: Cross multiply
    991,510.10x = 1,487,265.15 × 243,556.10
  4. Step 4: Simplify right side
    991,510.10x = 362,232,499,599.92
  5. Step 5: Solve for x
    x = 362,232,499,599.92/991,510.10
  6. Step 6: Final answer
    x = 365,334.15

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Half scale
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Double scale
Find fourth proportional to 991,511.10, 1,487,266.65 and 243,557.10
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.