Home / 1,018,810.14-1,528,535.25-420,053.10

Finding the Fourth Proportional to 1,018,810.14, 1,528,535.25 and 420,053.10

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Solution

The fourth proportional to 1,018,810.14, 1,528,535.25 and 420,053.10 is: 630,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,810.14 : 1,528,535.25 = 420,053.10 : x
  2. Step 2: Convert to fraction form
    1,018,810.14/1,528,535.25 = 420,053.10/x
  3. Step 3: Cross multiply
    1,018,810.14x = 1,528,535.25 × 420,053.10
  4. Step 4: Simplify right side
    1,018,810.14x = 642,065,970,221.78
  5. Step 5: Solve for x
    x = 642,065,970,221.78/1,018,810.14
  6. Step 6: Final answer
    x = 630,211.60

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Double scale
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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.