Home / 1,186,064-1,779,280.32-398,280.32

Finding the Fourth Proportional to 1,186,064, 1,779,280.32 and 398,280.32

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Solution

The fourth proportional to 1,186,064, 1,779,280.32 and 398,280.32 is: 597,482.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,064 : 1,779,280.32 = 398,280.32 : x
  2. Step 2: Convert to fraction form
    1,186,064/1,779,280.32 = 398,280.32/x
  3. Step 3: Cross multiply
    1,186,064x = 1,779,280.32 × 398,280.32
  4. Step 4: Simplify right side
    1,186,064x = 708,652,335,219.30
  5. Step 5: Solve for x
    x = 708,652,335,219.30/1,186,064
  6. Step 6: Final answer
    x = 597,482.37

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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.