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Finding the Fourth Proportional to 583,386.40, 875,079.60 and 558,503.20

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Solution

The fourth proportional to 583,386.40, 875,079.60 and 558,503.20 is: 837,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,386.40 : 875,079.60 = 558,503.20 : x
  2. Step 2: Convert to fraction form
    583,386.40/875,079.60 = 558,503.20/x
  3. Step 3: Cross multiply
    583,386.40x = 875,079.60 × 558,503.20
  4. Step 4: Simplify right side
    583,386.40x = 488,734,756,854.72
  5. Step 5: Solve for x
    x = 488,734,756,854.72/583,386.40
  6. Step 6: Final answer
    x = 837,754.80

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Double scale
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Similar ratio
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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.