Home / 876,612,818.88-1,209,143,194.56-563,742,581.76

Finding the Fourth Proportional to 876,612,818.88, 1,209,143,194.56 and 563,742,581.76

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Solution

The fourth proportional to 876,612,818.88, 1,209,143,194.56 and 563,742,581.76 is: 777,590,164.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,612,818.88 : 1,209,143,194.56 = 563,742,581.76 : x
  2. Step 2: Convert to fraction form
    876,612,818.88/1,209,143,194.56 = 563,742,581.76/x
  3. Step 3: Cross multiply
    876,612,818.88x = 1,209,143,194.56 × 563,742,581.76
  4. Step 4: Simplify right side
    876,612,818.88x = 681,645,506,218,788,352
  5. Step 5: Solve for x
    x = 681,645,506,218,788,352/876,612,818.88
  6. Step 6: Final answer
    x = 777,590,164.71

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Double scale
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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.