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Finding the Fourth Proportional to 560,313.36, 776,503.62 and 549,680.40

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Solution

The fourth proportional to 560,313.36, 776,503.62 and 549,680.40 is: 761,768.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,313.36 : 776,503.62 = 549,680.40 : x
  2. Step 2: Convert to fraction form
    560,313.36/776,503.62 = 549,680.40/x
  3. Step 3: Cross multiply
    560,313.36x = 776,503.62 × 549,680.40
  4. Step 4: Simplify right side
    560,313.36x = 426,828,820,443.05
  5. Step 5: Solve for x
    x = 426,828,820,443.05/560,313.36
  6. Step 6: Final answer
    x = 761,768.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.