Home / 953,688-1,316,042.40-571,640.64

Finding the Fourth Proportional to 953,688, 1,316,042.40 and 571,640.64

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Solution

The fourth proportional to 953,688, 1,316,042.40 and 571,640.64 is: 788,835.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,688 : 1,316,042.40 = 571,640.64 : x
  2. Step 2: Convert to fraction form
    953,688/1,316,042.40 = 571,640.64/x
  3. Step 3: Cross multiply
    953,688x = 1,316,042.40 × 571,640.64
  4. Step 4: Simplify right side
    953,688x = 752,303,319,803.14
  5. Step 5: Solve for x
    x = 752,303,319,803.14/953,688
  6. Step 6: Final answer
    x = 788,835.89

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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.