Home / 1,257,923.15-1,886,901.12-359,394.20

Finding the Fourth Proportional to 1,257,923.15, 1,886,901.12 and 359,394.20

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Solution

The fourth proportional to 1,257,923.15, 1,886,901.12 and 359,394.20 is: 539,095.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,923.15 : 1,886,901.12 = 359,394.20 : x
  2. Step 2: Convert to fraction form
    1,257,923.15/1,886,901.12 = 359,394.20/x
  3. Step 3: Cross multiply
    1,257,923.15x = 1,886,901.12 × 359,394.20
  4. Step 4: Simplify right side
    1,257,923.15x = 678,141,318,501.50
  5. Step 5: Solve for x
    x = 678,141,318,501.50/1,257,923.15
  6. Step 6: Final answer
    x = 539,095.98

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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.