Home / 830,412.10-1,242,665.70-576,501.40

Finding the Fourth Proportional to 830,412.10, 1,242,665.70 and 576,501.40

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Solution

The fourth proportional to 830,412.10, 1,242,665.70 and 576,501.40 is: 862,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,412.10 : 1,242,665.70 = 576,501.40 : x
  2. Step 2: Convert to fraction form
    830,412.10/1,242,665.70 = 576,501.40/x
  3. Step 3: Cross multiply
    830,412.10x = 1,242,665.70 × 576,501.40
  4. Step 4: Simplify right side
    830,412.10x = 716,398,515,781.98
  5. Step 5: Solve for x
    x = 716,398,515,781.98/830,412.10
  6. Step 6: Final answer
    x = 862,702.40

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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.