Home / 738,639.08-1,020,162.23-496,501.13

Finding the Fourth Proportional to 738,639.08, 1,020,162.23 and 496,501.13

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Solution

The fourth proportional to 738,639.08, 1,020,162.23 and 496,501.13 is: 685,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,639.08 : 1,020,162.23 = 496,501.13 : x
  2. Step 2: Convert to fraction form
    738,639.08/1,020,162.23 = 496,501.13/x
  3. Step 3: Cross multiply
    738,639.08x = 1,020,162.23 × 496,501.13
  4. Step 4: Simplify right side
    738,639.08x = 506,511,699,978.32
  5. Step 5: Solve for x
    x = 506,511,699,978.32/738,639.08
  6. Step 6: Final answer
    x = 685,736.40

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Double scale
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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.