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Finding the Fourth Proportional to 883,509.14, 1,219,210.28 and 539,920.16

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Solution

The fourth proportional to 883,509.14, 1,219,210.28 and 539,920.16 is: 745,070.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,509.14 : 1,219,210.28 = 539,920.16 : x
  2. Step 2: Convert to fraction form
    883,509.14/1,219,210.28 = 539,920.16/x
  3. Step 3: Cross multiply
    883,509.14x = 1,219,210.28 × 539,920.16
  4. Step 4: Simplify right side
    883,509.14x = 658,276,209,451.25
  5. Step 5: Solve for x
    x = 658,276,209,451.25/883,509.14
  6. Step 6: Final answer
    x = 745,070.06

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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.